I'm working on a quilt using a stack and whack effect (not that I cut it that way, but you know the sort of thing), and between that and a Paula Nadelstern book, I am getting interested in kaleidoscope quilting. I gather that one very useful tool for this is to use a hinged/folding pair of mirrors. The ones at the quilt shop are madly overpriced, considering how easy it is to get mirrors and put some duct tape on them to create a hinge. So my questions are:
1) What size mirrors would be best, considering that I may go on to may 20" diameter kaleidoscopes? I've seen 12" x 6" mirrors sold for quilting, but is the 6"high enough to really see what's going on in the mirror?
2) What sort of mirror should I get? Will an acrylic mirror off eBay, and they are sold in a variety of sizes and are very cheap, do the job? I imagine that it would be lighter weight and I wouldn't have to worry about breakage, but I don't know how clear the reflection would be.