I have been using some old dead frogspawn or hammer skeletons to mount zoa's to. The skeletons are nice and soft which makes it really easy to cut up with a dremel. It's like cutting through butter. I did have a really nice size hammer that died so I had a nice size Skelton to work with. I cut out some flat squares and just glued the zoa on that. Then it makes it nice and easy to frag later. I will take a pic tonight to show what it looks like.