Pebble Bath Mats

I know I've mentioned in posts before about all the VivaTerra pebble items they have gonig on. They've got pebble placemats, round stone mats, and of course the river stone mats that come in 4 different types of stone $59:

I recently saw a similar version on CB2, the pebble mat, $44.95:

I couldn't really find any less expensive options, if anyone sees any please let me know!