Hi, I am trying to buy a magnifying rectangular mirror for a science project. While simply buying a glass mirror with magnification is available, I have yet to been able to find a mirror large enough for my purposes. It would need to be rectangular 12"X7.5" mirror with at least a 10X magnification. After doing some research, I have come to the conclusion that making a concave mirror out of flexible mirror sheets would be my only option (and the most cost affective.) I am currently in the process of looking for a flexible mirror to bend into a parabolic shape for magnification purposes. I am fairly unfamiliar with with mirror types so any help would be greatly appreciated. Would something made out of a reflective mylar mirror-like sheet work? If so, where can I purchase my own? Details would be great. Thank you so much.