Here are some tile coasters that I made for my husband's co-workers last year for Christmas gifts. I use tiles that you can find at Lowe's or Home Depot and that is also where I found the rubber bumpers for the bottom too. You can find the directions on how to do this at www.stamptv.ning.com/video/tile-coasters. They are very easy and make great gifts. You get nine tiles to a box for under $6.00. I found this idea at Curt's World: http://curtsplayhouse.blogspot.com/
