I must admit that I did not design this butterfly, but I have modified the twisting pattern to make it less likely to pop. I learnt the design from a book many years ago, but I am not sure of the author; I belive it may be Marvin L. Hardy, but where he got the design from I do not know. This one is a lot harder to make than it appears, but it is very popular with the girls. It is well worth the effort of learning. Instructions are below.
