Wow, those look gorgeous together
!
And I love the idea of doubling the strap over. I'm going to try that tonight with mine.
If you find that you can't come up with a way of doctoring it more sturdily, then you could try ordering a replacement strap for a white shoulder bag and using that on the hippie, in place of the hippie strap. The shoulder bag strap fits onto it - I tried it with mine but my shoulder bag is whiskey and the hippie is khaki/ebony sig so unfortunately they don't go together. I only tried it to see if the size would work. I'm not sure how much
Coach would charge for a replacement strap, though.