I had this idea to spilt denim jackets in half and be able to reattach a different half. I have tried this numerous times with zips but I could never get the zips to sit flat - not sure if it’s my sewing skills or the fact that I use different weights of denim… dodgy excuse even to my ears - zips aren’t my greatest skill set!
Anyway, totally unexpectedly my subconscious came with the answer. Popper studs. I’d previously bought a length of popper studs to make bodysuits and by the time they arrived I’d gone off the idea (maybe nows the time to relight that idea!). So I decided to use the popper studs (which come in a length of black tape) to reattach the two pieces to make a complete jacket.