I come up with this and you can do it by yourself..
Actually, the paper in the middle should be moved the to lower part as shown in the final finished pic below.
Finally you can always cover the whole thing will another sheet of paper on top.
With cover on top
Then why US$1, because if you would be generous enough to sponor to my paypal account, then my road to a MM is closer to reality.
Anyway..enjoy your free light tent!