You don't necessarily have to buy expensive materials to make classy looking jewellery. Here is just one idea for re-using plastic packaging to make something pretty to wear. I have used a drink bottle, but any other suitable clear plastic can be used to make these sparkly earrings.
1 clear drink bottle or other similar plastic packaging
Cut the base off your bottle.
Cut off a large piece of straight plastic.
From this piece cut 2 pieces that are approximately 4 inches by 3/4 inch.
Punch a hole into each end of each piece.
Round off the ends.
Decorate one side of each piece with glitter glue.
Leave this to dry. This could take a while. You can speed up the drying by leaving them on top of a warm radiator.
Curl the pieces in half and join with a jump ring. Attach to an earring wire using another jump ring.