You'll need: Foam sheets, sharp scissors, X-acto knife for cutting out holes, craft glue, string for hanging, and tape.
What to do: For each ornament, cut out two "frame" pieces, one solid ornament piece with the center intact, and whatever doodads you want to stick in the middle. Form a loop with your thread and knot the ends. Tape the knotted end to the top of one side of your solid shape. Then glue your frame pieces on each side like a sandwich, hiding the ends of the string. Glue some doodads to the hole in the middle. Place it under a light book while you wait for the glue to dry.
Tips: Cut your shapes very carefully. Make the inner solid piece a tiny bit smaller than the frame pieces so it doesn't poke out around the edges. Once it's glued together, don't try to trim the edges further. It will end up looking like your dog chewed on it. Cut it well the first time.
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