I am working on a Golden Age Wonder Woman and I have a very specific problem. The original outfit had a very low cut back. I have tried a couple of different tops, both high back and low back, but they all have the same problem: the front slips down and she falls out of the top. I also had the same problem with a Brian Leitner Black Canary outfit, but I sewed a couple straps which were hidden beneath the jacket. With Wonder Woman, I don't have this option. So the question is, how do you other customizers make a strapless top stay up where they should?