Newbie Popper Body Question

While in Dallas for Cotton Bowl got to shop at both Barlow?s and BPS (darn, did not get to Cabela?s). Being a newbie tier, I have been using tying kits to help me up the learning curve. I purchased a WAPSI popper kit at Barlow?s. It is the Tapered, Cupped and Slotted model #4. I saw that the bodies were unpainted styrofoam. Bought two Prismacolor pens there and ?Popper Paint? at BPS.

Got my first couple of ?poppers? done. Tried the paint, ouch! It aint real styrofoam friendly. Found that the styrofoam is very hard and has a coating. Anywho I scuffed the bodies with 250 grit and dunk painted three and pen colored three. Actually like the pen color better.
My question is, where do ya get popper bodies of closed cell foam in the color ya want? The styrofoam is too much to mess with!