I found this idea online and knew that I had do give it a try. My kids LOVED gluing the crayons on and was able to do it themselves - even my kindergartner!!
I found my frames at Walmart for $10. They are 12x12 shadow boxes. I used tacky glue to adhere the paper onto the cardboard backing and also used it to glue on the crayons. It's a little thicker than Elmer's glue and kept the crayons in place until they were dry. I used about 1 1/2 boxes of crayons for each letter - but it probably depends on what letter you are making.
I found the idea for this HERE:
Chance & Hailey working on theirs..
Hailey's finished project..