Vixen has created a Hitachi attachment that you must have. It will also fit the Accuvibe and similar big headed vibes.

The Gee Whizzard is a pure silicone dildo, and nubby clit stimulator. It's a one piece, marbleized clear and emerald cover, with a solid G spotting dildo. To use it, simply slide the cover over the head of your vibrator. Use a little water-based lube, and you can use this attachment to warm up your punnani externally with the nubby textured side. To use the dildo, simply turn the vibrator around with a twist of your wrist, and you have a four inch insertable G spotter. The dildo part is curved beautifully, and it also has undulations in the silicone to enhance pleasure.

Unfortunately covering the head of the Hitachi doesn't make it sound any less like a jackhammer. The silicone also heats up quickly since the Hitachi heats up quickly. If you are the creative sort, you can penetrate your partner with the G spotter while straddling the clit stimulator. This product can also be used by men to massage the prostate.

The Gee Whizzard can be boiled for three minutes, washed in antibacterial soap, soaked in 10 percent bleach or wiped with toy cleaner. A standard condom fits easily over the dildo. The G Whizzard came in a Vixen tube, that allowed you to see the whole product three dimensionally, and is good for storage (although I recycled it because its bulky plastic).

There are plenty of attachments that fit the Hitachi or the Accuvibe, but none quite like this. Instead of being rubber or elastomer, it's real silicone and it's by Vixen; a company that stands behind its products, and is well known for its quality skin-like VikSkin dildos. Take good care of the Gee Whizzard and it will outlast your Hitachi, and the Hitachi that replaces the previous one....

Really elevates the Hitachi to a whole new level. My partner likes a vibe on the outside while being thrusted, and the nubby stimulator had her slamming her head against the wall behind my bed. There should be a warning on the package that if your Hitachi is wearing a helmet, so should you and your partner!

This is my most durable Hitachi cap. I have had PVC and Jelly ones burn, shred, or even melt slightly from the heat of the Hitatchi. This product, being pure silicone, comes out as a knock out in the arena. It can withstand a temp of 600 degrees. (Take that, Global Warming!) It's boilable as well. Save your money on the cheaper attachments, unless you like the smell of burning rubber. Its also a great gift to a friend!