You know, like a flashlight! Except with a vagina! This discrete plastic canister secretly houses a washable pink silicon rubber "masturbation sleeve," available in 7 different textures—from "vortex" to "speed bump"—and a variety of orifices, including "mouth," "lady," and "butt" (use your imagination). Also available from the company: "Sex in a Can"—which kind of looks like an energy drink. Except with a vagina.
Honorable Mention: the "Autoblow" Robotic blow job