Michaels also sells kits that have pretty much everything inside them so watch for those too.
I used a glass Pyrex measuring cup for mine.
I just eyeballed what looked like (6) half bars of soap and popped that in my Pyrex.
(Better to have too little than too much so be conservative.)
Place your soap mold on a flat surface that wont be disturbed.
I put mine out of the way on the laundry room counter.
