So we came up with a cheap and easy way to hack the Etch-A-Sketch so that not only can you draw the old way, but you can draw a perfect circle wherever you want too!
For this hack you're going to need:
1x Metal Wire (we took ours from a hanger)
1x Plastic Ring From A 2-Liter Soda Bottle
1x Sharp Edged Pick (something that can bore a hole into plastic)
Super Glue, Duct Tape, Scissors, and other miscellaneous parts...
Warning: Although the Aluminum Powder inside the Etch-A-Sketch is Non-Toxic, it does get everywhere, and I mean EVERYWHERE! So prepare the area where you'll be operating on the Etch-A-Sketch accordingly.
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Step 1: Opening Up The Etch-A-Sketch
Remove the knobs from the Etch-A-Sketch, then use whatever tool you have to separate the front and back of the etch a sketch at the seam.
You'll discover that the front plastic, in our case the blue Toy Story design, is actually just a cover, all the aluminum powder and plastic beads are sealed behind the glass and plastic.