Got these off of a site:
AC adapter for solar calculators.
Air-Bag Motorcycle jacket.
Anklet wristwatches for contortionists.
Battery powered battery charger.
Battery-operated nuclear power plants.
Braille Drivers' Manual
Breathable space suit.
Cabin pressurization system for the Cessna 150.
Camcorder with braile-encoded buttons.
Candy bars with stannous fluoride added.
Car steering triangles -- doubles as anti-theft device.
Cast iron wire.
Cat flap for the fridge.
Combs for bald-heads.
Cordless plumb line.
Double-sided playing cards.
Ejector seats for helicopters.
Electric banana straightener.
Extra-large bicycle clips, for use when cycling in shorts.
Felt Jumper cables.
Foam rubber toothpicks.
Freeze Dried Water.
Ice skate sandals, for use in hot climates.
Inflatable PC -- The Ultimate Laptop!
Laundromat in a nudist colony.
Lie detectors for politicians.
Low salt brine.
Luminous sun-dial, for use at night.
Matte finish floor wax.
Micro-miniature personal vibrator.
Money with negative face value.
Non-intrusive alarm clock (raises a flag instead of ringing a bell).
Papier mache step ladder.
Parachute that opens automatically, upon impact.
Particle board tent stakes.
Reduced calorie water.
Remote control for a Watchman.
Reversible garbage disposal.
Rollerblade skates for peglegs.
Screen door on a submarine.
Solar powered flashlight.
Solar powered night light.
Solar-powered pacemakers for elderly sunbathers.
Steel-belted radial rubber bands.
Strap-on portable chairs.
Sundial with glow in the dark markings.
Tire chains for motorcycles.
Trailer hitch for the Honda CVCC.
Training wheels for timid sports car drivers.
Umbrella with a skylight.