Here's a unique way to use ceramic tile for a very unusual countertop. Just break up the tiles into random pieces, use thin-set mortar and create the pattern of your choice. Let the tiles set overnight, and then use ceramic-grade grout with an additive to prevent wide joints from cracking. Let set for ten minutes and wipe with a dry synthetic pad (a wet pad would wash the joints out).
For more on kitchen countertops, consider:
How To: Work with Mosaic Tile
Guide to Kitchen Countertops
One-of-a-Kind Countertops: 6 Ways to Make Yours Unique