For my first tombstone I used 3/4 inch foam glued together. The 3M Super 77 adhesive works great for the extruded foams. Most of my tombstones are at least 2 inches but I know plenty of people that have great looking thin stones. I guess it depends on the style of tombstone you are making.Fright Yard said:ok I just picked up 2 pieces of rigid foam, 3/4 inch thickness. Im wondering if i should glue them together or if I can get away using 3/4 by themsleves, how thick are your tombstones???????????