I have been taking them for about a month, but the stool is still hard as everNow my boss is trying to fire me because I am often in the rest room.
depending on the thickness you could use a nibbler they rent them at a tool rental place (not home depot though)
By far the easiest way would be to use a Bandsaw.
Are you asking how it is made? It is stamped in a large pressIf you need to cut some, use a hacksaw, jigsaw, reciprocating saw, skill saw (with an old plywood blade, and SAFETY GLASSES), angle grinder, oxy-torch kit, or even a nail file.
I know !! I Know !!! Take a 2/3 full Bottle of water, place shredded pieces Aluminum foil in it, pour a half cup of Crystal Drain O in it, put the cap back on tight , shake it and hold it for about 30 secthat should soften your stool EDIT : That was a Joke, DONT DO IT Youtube Drain O Bomb to see what happens ok