http://coloradoorganics.net/index.asp?PageAction=VIEWPROD&ProdID=502 my dad or a friend is going to make me a wooden slab mold. i am wanting something like this one but am having a terrible time with the size. i am using the walmart recipe, slightly tweaked. every 'formula' i try to use to figure size, nothing seems to work out (lb of oils or lb of oils) right now i am thinking to use a mold about 18x14, making 30 bars about an inch thick. any input would be greatly appreciated.