Stupid inventions
- pedal-powered wheelchair
- submarine with screen door
- water-proof tea bag
- a black highlighter
- inflatible dart board
- a book on how to read
- a wooden bbq grill
- a glass baseball bat
- index in the dictionary
- bullet proof gun
- waterproof bathing suit
-super glue post-it
-motorcycle air conditioning
-an invisible bathroom door
- submarine with screen door
- water-proof tea bag
- a black highlighter
- inflatible dart board
- a book on how to read
- a wooden bbq grill
- a glass baseball bat
- index in the dictionary
- bullet proof gun
- waterproof bathing suit
-super glue post-it
-motorcycle air conditioning
-an invisible bathroom door