I've always loved this thread and I thought it was time to bump it back. This year I broke my old dental mirror. It had been a faithful and useful tool, however when I went o replace it I splurged and treated myself to the "TEKTON 7609 telescoping inspection mirror". It has a couple little LED's on it and is a larger mirror. Excellent tool for looking down into brom axials and other hard to see locations in the vivarium.