/cgl/ - Cosplay & EGL

I'm trying to figure out the best way to make a harness for Jibril's wings that will allow me to have largely accurate wings but won't droop terribly.

I've also heard of people using packing foam shweting for wings to make them lightweight but I'm having trouble finding any rolls that aren't already perforated or expensive.

Any help would be appreciated! Thank you in advance.