TPE vs. Silicone Attachments for Motorbunny: How to Choose

Quick Answer

Choose silicone for body-safe, non-porous, low-maintenance attachments that last longer; choose TPE for a softer, more flexible feel and lower upfront cost. If you want easy cleaning and long-term durability, go with silicone. If you prioritize budget and a more lifelike texture and don't mind extra care, TPE is a viable option.

When you're shopping for Motorbunny attachments, the material choice matters more than you might think. TPE and silicone are the two most common options, but they behave very differently in terms of sensation, safety, and maintenance. Understanding these differences helps you pick the right attachment for your riding style and care routine.

In this guide, we break down the key trade-offs between TPE and silicone, give you clear decision rules, and explain how material affects fit and performance on both the Motorbunny Original and Motorbunny Buck. Whether you're after intense prostate stimulation or a lifelike dual-density feel, knowing what to expect from each material is the first step.

What's the Difference Between TPE and Silicone?

TPE (thermoplastic elastomer) is a blend of plastic and rubber. It's soft, flexible, and often less expensive than silicone. However, TPE is porous, which means it can trap bacteria and odors if not cleaned thoroughly. It also degrades faster when exposed to certain lubricants or high heat, so it requires careful maintenance.

Silicone, especially platinum-cured silicone, is non-porous and body-safe. It's more durable and easier to sanitize, making it a favorite for those who prioritize hygiene and longevity. Silicone attachments often feel firmer than TPE, but they can be made with dual-density layers to mimic a more lifelike texture.

• TPE: soft, budget-friendly, porous, needs careful care
• Silicone: body-safe, non-porous, easy to clean, more expensive

Sensation and Texture: What Feels Best?

TPE attachments tend to have a softer, more skin-like feel that many users find more realistic. They also have more give, which can be comfortable for longer rides. However, TPE's porous nature means you should use a condom over it for easy cleanup and to protect the material from body oils.

Silicone attachments can range from very firm to quite soft, depending on the design. Dual-density silicone, like the MB Real "The Shocker," uses a firm core with a soft outer layer to give you the best of both: stability and a lifelike touch. This makes silicone a great choice for those who want reliable pressure and g-spot or prostate stimulation without sacrificing comfort.

• Try a softer TPE if you prefer a pliable, squishy feel.
• Choose dual-density silicone for a balance of firm support and soft texture.

Care and Maintenance: Cleaning and Storage

Silicone is the low-maintenance winner. You can wash it with mild soap and warm water or use a toy cleaner, and you can even boil it or put it in the dishwasher (without detergent) for deep sanitization. Always use water-based lubricant with silicone; silicone-based lube can degrade the material.

TPE requires more attention. It should be cleaned immediately after use with a gentle toy cleaner, and it must be fully dry before storage to prevent mold growth. Avoid storing TPE in direct sunlight or high temperatures, and don't use silicone-based lube because it can break down the material. For both materials, store them separately from other toys to prevent material transfer.

• Silicone: easy to clean, can be boiled or dishwashed, use water-based lube.
• TPE: clean promptly, dry thoroughly, store away from heat and direct sunlight.

Fit and Compatibility with Motorbunny Models

Both TPE and silicone attachments are available for Motorbunny, but you need to check the base type. Motorbunny Original uses a Vac-U-Lock or proprietary base, while the Motorbunny Buck has a different mounting system that may require an adapter like The Grip. Always confirm the attachment's base and compatibility with your specific model before buying.

Some attachments, like the Ika from Bad Dragon, are made specifically for the Motorbunny Original and come in different sizes and colors. Others, like the Premium Silicone Keister Bunny, are designed for prostate massage and don't have rotational capabilities. Understanding the fit and any limitations helps you avoid disappointment.

If you're using the Motorbunny Buck, you might need an adapter like The Grip to use certain attachments. The Grip is designed to firmly support Doc Johnson Main Squeeze strokers, making it a versatile option for adding different sensations. Check the attachment's product page or manual to see if it works with your machine's system.

• Always verify the base type and compatibility with your Motorbunny model.
• Use adapters like The Grip for Buck to expand your attachment options.

Quick Decision Rules for TPE vs. Silicone

• If you prioritize body safety and easy cleaning: Choose silicone attachments. They are non-porous, can be sterilized properly, and won't harbor bacteria. This is especially important if you share toys or want low-maintenance care. Go with silicone for peace of mind.
• If you want a softer, more flexible feel: TPE offers a pliable, skin-like texture that some find more realistic. However, you must be diligent with cleaning and use condoms to keep them hygienic. TPE is great for texture but needs extra care.
• If you have a Motorbunny Buck: Check compatibility. The Buck requires a specific mounting system, and you may need an adapter like The Grip to use some attachments. Always verify the base type before purchasing. Ensure your attachment fits your model.

Attachment Examples and What They Teach Us

• MB Real "The Shocker" Premium Dual Density Silicone Attachment: This attachment is made of premium body-safe silicone and designed for intense, slimmer double penetration experience, mimicking the classic "shocker" for dual stimulation. It shows how silicone can be engineered for specific sensations, offering a firm yet soft feel. The dual-density design gives you stability for targeting the prostate or g-spot, while the slim profile makes it easier to use in double penetration scenarios.
• "Ika" Bad Dragon Attachment made for Motorbunny Original: Made of 100% body-safe platinum cured silicone, this tentacle dildo features a perfect base, a curved shaft for g-spot stimulation, and suction cups for added texture. Platinum-cured silicone is the highest standard for body safety and durability. This attachment illustrates how silicone's firmness and curve can provide precise stimulation, and its non-porous nature makes it easy to sanitize, even after extended use.
• Premium Silicone Keister Bunny Prostate Massager Attachment: This 100% silicone attachment is designed for prostate stimulation with a 3.5-inch main shaft, 1.25-inch width, and flexible bunny ears for scrotal and perineum tickling. It is non-porous and easy to sterilize, but it does not twirl. This is a great example of a specialized silicone attachment. Its non-porous silicone is easy to clean, and the lack of rotation means you get steady pressure. The design highlights how silicone can support ergonomic features like ticklers without compromising hygiene.

Best Fit for Your Riding Style

Best for

• Riders who value easy maintenance and long-term durability—silicone is your pick.
• Those who want firm, precise stimulation for g-spot or prostate play—silicone offers better stability.
• Users who are willing to invest more upfront for a body-safe, non-porous material.

Not for

• Buyers on a tight budget who want a softer feel—TPE is more affordable but requires more care.
• Anyone who wants a super plush, squishy texture without worrying about hygiene—consider using a condom with TPE.

Choosing between TPE and silicone attachments for your Motorbunny comes down to your priorities. If you want body safety, easy cleaning, and long-lasting performance, silicone is the clear winner. If you prefer a softer, more budget-friendly option and are ready to commit to thorough maintenance, TPE can still be a good fit. Always check compatibility with your machine and choose attachments that match your desired sensations. Happy riding!