I am going to try and make a bottomless pit idea, indoors. Has that been done? I would like to make it look like a hole in the floor. Like maybe a science experiment exploded. I would like to put carpet, and burnt debris around edge. and make it look like it is a hole down to the basement. Then use a caution barricade across the top or caution cones around it. Can anybody that has made one of these, let me know if this would work. I can put something similar in the basement, as that is getting decorated also.