This is a great UV resin I have been using in my jello mold. You can use Alcohol inks to color the resin.

This is a 3.6 oz bottle. 

You will need a UV flashlight to harden the resin. I have 2 available. One does a larger area and one is smaller for a more targeted beam. Both work really great for the jello molds. 

Both are rechargeable and come with cords to plug in.