Plastic Jewels

We will need a plastic bottle (the one used for carbonated drink, not mineral water or non-carbonated drinks). Cut them into rectangular pieces.
Heat up the plastic sheets in the oven toaster (for about 10-15 secs or until a shape is formed).
Depending on how the sheet is placed, the shapes may turn out differently.
Color or decorate the newly-shaped plastic pieces. You can use them as pendants or as embellishments to accessories.
Chain it and we are done!