im a total bath bomb nut!! i like round bombs, but i cant really get my mixture packed into those christmas ornaments the way i like. they do work and make pretty nice size balls. my pref. is a piece of pvc pipe and a wooden dowel, i put my mixture into the pipe..take the wooden dowel and pack that puppy about 3 or 4 times really hard, if i want different colors i put a tablespoon of 1 color pack it down lightly, tablespoon of another color pack it down, give it a little push with your wooden dowel and out it pops, you get a tablet shaped bomb but theyre pretty too and packed so firm mine NEVER crumble its a really cheap way to get a good bath bomb press and pvc comes in small to large, you just gotta make sure you get a wooden dowel that fits into your pipe