Handmade Polymer Clay Flat Round Spaces. These lightweight, great priced beads are fantastic for making childrens jewellery, or for adding lots of funky colours to your jewellery, without the weight! Due to the handcraft nature, size, shape and colour may vary slightly. * Although they are great to make jewellery for children, please be aware that are still not advisable for children under 3, as choking may occur.