Things You'll Need
- Styrofoam
- Yard stick
- Box cutter
- Mylar blanket
- Duct tape
Instructions
Using a yardstick, measure a piece of Styrofoam the size of the base of your cat shelter box. Cut it out with a box cutter.
Cover the Styrofoam with contact paper so the cat won't scratch it.
Wrap the Mylar blanket around the Styrofoam base.
Flip over the Styrofoam base and tape the edges of the Mylar blanket to the base with duct tape.