I have all obstacles on the edge and I collect them all since cauldron. I have several of each and while I like xmas trees, I don't find cakes fit well with the rest of the base. I used several shovels but it's impossible to arrange all the trees and so because I have to move cakes too. So I'm thinking just to keep one. But as a collector person I'm afraid I'll regret later. Anyone removed extra obstacles after keeping them for years previously?