Clay Planet Thickness Strips
A set of solid hardwood strips of 4 different thicknesses, 23" long x 1" wide.
2 strips each of - 1/8", 1/4", 3/8", 1/2" thickness.
Lay parallel beside a slab (one on each side), to roll consistent thickness when using a rolling pin to make slabs.
Hint: Turn and flip your slab to avoid curling edges from clay memory between passes.