i am going to buy some cake dummies to practice on. I was just looking the www.guildcraft.com and they seem cheap! Just a couple of questions. I am guessing that I should get the 4" high ones. What sizes to you recommend getting? I figure round and square would be smart to get. Thanks for your suggestions!!

You should definitely get the 4" ones. If you plan to practice tiered cakes, I suggest a 6", 10", and 14", both in round and square. The best part is, once you are done, you can clean them off and use them again.