The above age and time guidelines are estimates. This project can be modified to suit other ages and may take more or less time depending on your circumstances.
I used shrink plastic made to be printed in an ink jet printer, but you can easily design your own washers by drawing the circles and decorating them. Usually, the color of your finished shrink plastic projects will be darker than when you colored them in. Knowing this, you may want to make the colors lighter than you want the finished project to be.
Start off by downloading the pattern template in the format that works best for you:
Print out the washer patterns. Let them sit until the ink is dry, and then cut them out. To cut out the holes, I found it easiest to use a utility knife to make a small cut and then cut out the rest with the scissors. You can also use a hole punch to start the hole and then finish cutting out the rest with scissors.
Line a cookie sheet with either parchment paper or a rectangle cut from a paper bag. Place your washers on the cookie sheet and place it in a 325 degree oven for between 1 and 3 minutes.
Watch your washers as they shrink so you know when to remove them from the oven. While they are shrinking, they will first curl up and then lay flat again. Remove the pan from the oven and let them cool. Your shrink plastic washers will cool quickly.
Cut a piece of cording or thin ribbon about 24-inches long. Fold it in half and stick the loop made by the fold through the hole in the washer, in through the back and out through the front. Take the two ends of the ribbon or cord and push them through the loop and pull them tight. This will tie the ribbon or cord onto the washer. Take the ends of the ribbon or cord and push them through the hole in the pony bead. Push the bead down until it sits on the washer.
You can now trim the length of the ribbon or cord now and then tie them together. Your shrink plastic washer necklace is now ready to wear.