Step 1:

Pre-heat oven to 325º. Choose a piece of #6 plastic that is free of indentions. Cut a desired shape out of the plastic (note that plastic will shrink to 1/3 of its original size).

Step 2:

Using permanent markers draw a design or picture on your cut plastic.

Step 3:

Punch a hole near the top of your plastic creation.

Step 4:

Create an aluminum foil tray by folding up the edges of a piece of aluminum foil. Place your plastic piece on the foil.

With an adult, use an oven mitt to carefully place the foil on the bottom rack of the oven.
Watch the plastic carefully. In under a minute the plastic will shrivel and shrink to 1/3 its original size. Once it has shrunk, have an adult carefully remove it from the oven using an oven mitt.

Step 5:

Place the jump ring through the hole of the plastic.

Step 6:

Slip your pendant onto a chain, ribbon, etc. and ENJOY!