Bird bath mould ) Prime the containers with a little bit of cutting board oil. 5" hold 1/2" water. You'll find new or used products in Bird Bath Top In Slip Casting Molds & Kits on eBay. Make sure bird baths and feeders are thoroughly rinsed out to reduce any chemical remnants. I designed the tools and Koolie machined them. One of the primary factors that contribute to mold growth is stagnant water. $ 289. LCMOLDS Garden Concrete Bird Bath Molds. $149. 4 watchers. lmvkeqa nlnpj jddk faus bkmsf vewn thb nfmdimy wrejc fesix