Join Date: Mar 2008
Location: Los Angeles, CA
You can get them at your local tile shops for ~$2-3 for a 1x1' piece. I forgot the exact price but it comes in a 10 pack box. I paid ~$30 per box.
If you are around El Monte, I bought them at this tile shop called ABC Co. but I think they've changed their name. They are located at the intersection of Valley Blvd and Durfee Rd., right next to this burger joint called Big D's(their burgers are the next closest to In & Out, you should try it if you decide to go visit the tile shop). They usually dont carry them at the store but will special order for you.
Or if you are just looking for a box, I can sell them to you for twenty five bucks. PM me if interested.