I accidentally wrote moist rather than most when writing this post title, and considering the subject matter it was a tricky decision to remove it. Whilst there is nothing wrong with taking a light hearted look at some of the rather more odd gadgets on the market, I don't think I'll ever feel comfortable 'twiddling her knobs for pure sonic satisfaction'.
You could argue that it's necessary to play with these plastic nipples, as the left one sorts out AM/FM tuning and the right is volume control, but I say women can't be man handled that easily. Not for me I think, but a perfect present for your hormonal younger brother. It's £12.99 from Love Honey.