Sex toys [1]. They're a personal thing. Some people like, um, "realistic" items; others prefer cute (read: pink). Regardless, they aren't something you want anyone stumbling upon besides you and possibly your closest bed buddy.

Enter sex toy in disguise. Not that you want to display on the bookshelf (as girl-tech web site Shiny Shiny [2] suggests), but there certainly won't be any awkward moments between you and Mom when she innocently decides to pick up the place while visiting and, well, stumbles upon aforementioned items, such as the Hello Kitty Keychain Massager, left.

Incognito. Always a safe bet. Click here [2] to see a gallery of all 10.