Useless Inventions ...

Useless Inventions ...
A Pedal powered wheelchair
A black highlighter pen
Glow in the dark sunglasses
Non stick Cellotape
Solar Powered Flash Light
Waterproof sponge
Waterproof Teabags
Inflatable Anchor
Inflatable Dartboard
Seatbelts for Motorbikes
Silent Alarm Clock
AC adapter for Solar powered calculators
Battery powered Battery Charger
Braille Drivers Manual
Double sided playing cards
Ejector seats for Helicopters
Fireproof Matches
Fireproof Cigarettes
Smooth Sandpaper
Hand powered Chainsaw
Water-proof towel
Screen doors for submarines
A book on how to read
A dictionary index
Mechanical Pencil sharpeners
Powdered water
Watermelon seed sorter
Zero proof alcohol
Reusable ice cubes
See-through toilet tissue
Skinless bananas
Do-it-yourself road map
Turnip ice cream
Toe implants