Make a mosaic coaster over two weeks possibly for mother's day
Order the kit (makes 24) from Baker Ross http://www.bakerross.co.uk/product-Mosaic-Tile-Coaster-Kit-ET206.htm
OR gather up your own materials (MDF board, stones/crystals/tiles, grout).
Week 1. Using glue, stick stones to board in a pattern and leave to dry until week 2.
Week 2. Using the grout provided in the kit, grout the coasters and again leave to dry.