Things to ponder –
I am going to utilize this effect in our show this year. I will be using a half one. Being pretty good at figuring things out I did some research on making my own. First I need to buy the material. 2nd I need to get it vinyl welded so it doesnt loose air. 3rd I need to buy a fan. By the Time I run around and get all this done I save maybe $150. I'm buying one. It is very tough for me to pay for things I know I can do myself. However, I have learned( and still need to remind myself) that I am way happier, less stressed out, and more productive when sometimes I just write a check. Good luck.