Magic Tricks

This is okay. Honestly, it doesn't really look or feel much like an envelope so it really comes down to how strong the routine is. I think if the routine is powerful people are shocked by the prediction but if it's clearly just a 1 in 4 they start looking at the thing a little more carefully since the edges are weird and also the Tyvek has drawn attention by the very nature that it's a weird material. Great idea but it is a very hot gimmick that you're handing to a spectator.