i made one of these a while ago using Colorfill, but it was really gritty & started to scratch my brushes. it also left a sandy residue all over them. so today i was snooping in the craft section at walmart & found 1 lb of bean bag filler for under $5 (i think i paid around $10 for the same amount of Colorfill - CDN prices by the way). the bean bag filler has rounder, smoother edges than the Colorfill & isn't anywhere near as gritty. i'd definitely recommend getting it instead of the vase filler.