I made this tiles after seeing a post via Pinterest. The inks weren't too expensive but I did use my coupon (Hobby Lobby) a couple of times to get more colors. You will need the blending solution too. I used a used a toothbrush to spread the alcohol mix around before adding the ink. You can get a whole bunch more color options via this website: Ranger Ink and Innovative Craft Products
I followed this tutorial at Artsyville. Really the comments section carries a bunch of information as well. So though lenghty, it's worth the read.
The red and yellow one on the right, I added more alcohol blending solution to mix the colors even more.
What do I plan to do with these? I am just going to use them as coasters. I hot glued white felt on the back and that seemed to work just fine.
This process is fairly quick but do it in a well-ventilated area. The blending solution is fairly strong!
The only problem is the finishing. As you read through the tutorials you will see in the comments that finishing them so they are permenant and usable is under debate. If any of you try this and find some good solution(s), please let me know!!