Newspaper Frisbee
This is a great idea to waste time and have fun later. Should only take about 30 minutes to an hour depending on how good you are at folding paper.
Paper Claw
This is how you make a paper claw.
Assembling
You will need to make 8 of these.
Assembling
Next put the pointy end in the pocket at the top of the other one and slide it in as far as you can. Continue and add the other 6 on the two you just made.
Finish
You can cover it in duct tape to prevent it from falling apart and water proof.