The Illusion Top, a fun desk top toy you can make out of several simple parts.
All you need is:
2 metal washers the size of a fifty cent piece
1 Screw, a little larger than the length of the washer, with a round tip
1 bolt that screw all the way to the head of the screw
1 water bottle lid
a drill or something to poke a hole through the water bottle lid
Step 1: Step 1
Drill or poke a hole through water bottle cap the size of the screw. I recommend using a water bottle lid from Walmart's bottle, its made out of a softer plastic.
Push lid onto screw until it reaches the rounded head. Don't worry about the square at the head of the screw it will be covered in the following steps.
Stack washer on top of the lid.
Step 4: Step 4
Tighten bolt until lid completely covers the square at the head of the screw.
Step 5: Step 5
Wrap duct tape around the screw down to the bolt.
Step 6: Play!!!
Spin and play.