hi les, That's an interesting solution, but in a commercial product, I can't use anything that risks a crash. There's always someone, somewhere who'll do it! The pz2 idea sounds more feasible, although it's an extra step. Still, it might be worthwhile. Re props - That's a real problem. These rooms are pretty complex and there are 5 of them. Then there will be 4 packs of furniture, all figures. Converting that lot to props would be a nightmare, and in the end, probably not worth it just for parenting purposes. And, of course, I use MATs/SETs extensively, so with props, it becomes even more complicated. mac