Not Belly Dance
But wanted to share anyway, sadly the asymmetrical boob-sling idea has also crept up in other dance forms. The idea is actually quite old, the first boob-sling costume I ever saw was posted on Bhuz.com more than 10 years ago, as an example of a not so nice design.
I think that sometimes people try too hard to make their costume look unique and it just ends up being cluttered and confusing.