I've made enough displays to know that "quotter inch" Plexiglas saves a lot of models from people who don't seem to appreciate what goes into a diorama. Like you just ordered it and took it out of a box! 8-D I never like "separating" viewers from one's work with a barrier, but unless you have a couple of people to patrol it the entire time it's on display, things will be broken and stolen. Sad fact.