Here are the things you will need:
- 4 cardboard boxes, 20″ x 20″ x 20″ square single-walled cartons
- 2 carpet squares, 20″ x 20″
- 68 #10 washers
- 34 #10 nuts
- 18 1/2″ #10 screws
- 16 3/8″ #10 screws
- Screwdriver, optional
- Wrench, optional
- Tape measure
- Box cutter
- Long ruler or yardstick
- Pencil or marker
- Thumb tack
- String
- Drill or awl
- Duct tape
- Hot glue gun
- Bone folder
- Paint, in your favorite colors, e.g., Crayola Washable Kid’s Paint
- Paint brushes/sponges
Source: http://makezine.com/craft/how-to_build_a_cardboard_cat_r/
