Grim reaper Halloween tombstone mold concrete plaster mould 20"H x 14" x 1.75" | eBay
Buried alive tombstone mold plaster concrete Halloween plastic 12" x 10" x 3/4" | eBay
TOMBSTONE MOLD – petalcraftsusa.com
These gravestones are all carved and Drylok'd. Using a concrete sealer like drylok gives the foam board a concrete look and feel and gives the acrylic paint a great surface to adhere