Key Fobs, Magnets and Brooches from decorated, pre-printed Shrink Plastic Designs
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The skulls are pre-printed designs on shrink plastic which are decorated with colouring pencils, cut out and shrunk to 1/3 of their original size in a household oven. Another variant has holes added before shrinking for attaching as a key fob. The other two are shrunk without holes and glued on to a magnet and a brooch back.
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How to do it

2 Cut out the shape and make a hole if it is intended to be used as a key fob. Use revolving punch pliers and remember that the hole also shrinks to approx. 1/3 of its original size.
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