stone tiles from home improvement store, add felt to the bottom for inexpensive placemats or hot pads. I like this idea for hot pads, but not so much for placemats.
pieces of rope glued (liquid nails) to a cheap rug, tie each end of rope & fray ends, tutorial at the click through
Seed bead jewelry Bead Embroidery around a shell ~ Seed Bead Tutorials Discovred by : Linda Linebaugh
How to Make Crochet String Light Circle - Crochet - Handimania