Very easy (and cheap) to do! I bought this glass jar from Joann fabric, I think it was a couple bucks, and the white flower arrangement filler (in the isle with the fake flower arranging stuff). I believe it was around $5 but of course I always use a coupon. The filler keeps my brushes standing up nice and straight. Thanks to Enkore for the idea!
Cool! Are those teeny tiny little beads or is it the styrofoam?