Soon to be announced...

pedal-powered wheelchair
black highlighter pen
glow-in-the-dark sunglasses
non-stick Cellotape
solar-powered flashlight
waterproof sponge
waterproof teabags
inflatable anchor
inflatable dartboard
seatbelts for Motorbikes
silent alarm clock
AC adapter for solar-powered calculators
battery-powered battery-charger
double-sided playing cards
ejector seats for Helicopters
fireproof matches
fireproof cigarettes
smooth sandpaper
hand-powered chainsaw
waterproof towel
submarine screen doors
a book on how to read
a dictionary index
powdered water
zero proof alcohol
reuseable ice cubes
skinless bananas