I design and build exhibits for a museum. I am always looking for ways to engage people in thinking about the how they "see" and "imagine" objects and space. We have a Klein Bottle and some people are able to see that it is not like most objects or surfaces they see in everyday life. Most of those who do understand what is unique about the bottle want to know, "how is it made." I wish that I could get models of your images made! Thank you for a very nice site!