Here's what you'll need to build your own Treasure Collector!
Stiff paper or cardboard (e.g., an index card or piece of a cereal box about 3 inches by 5 inches)
1 drinking straw
20 feet of string
10 small metal objects (washers, nuts and bolts, paper clips, thumbtacks, etc.)
For step-by-step instructions visit the Design Squad website.