This is an accident waiting to happen. Options

[hi-C]

A home hair removal kit -- with a laser!

What's the worst idea you've ever seen?

[superstitious]

Most of these. Particularly this one:

Nokia Mobile Smelephone
For those of you tired of ringtones and in search of something a bit more intrusive, Nokia's Mobile Smelephone 1134 series is right up your olfactory alley. These phones release an aroma rather than a ring when an incoming call is received. While the available fragrances currently available sound pleasant enough (strawberry, citrus, mountain rain, meadow dew, discarded stem cells and urban blight) the smell can be sometimes overpowering and if the phone is within 2 feet of the person's eyes when an incoming call is received the eyes will temporarily burn, water and swell. Smells like a dud.

and this one

One Leg Barstools
Designed by IKEA in conjunction with Mothers Against Drunk Driving (MADD), the one leg barstool was meant to be a tool which bar owners could use to identify those people who had too much to drink. While their hearts were in the right place, this idea never took off as the balancing that was necessary to sit on these stools made everyone appear to be drunk and many injuries resulted, especially amongst the designated drivers sipping sodas at the bar and lacking that drunken "looseness" to endure falls.