Partial wing attachment

I'm going to be making a few unique premades to hone my technique and bring in some extra cash for conventions and the like.

One I would really like to do is a ragdoll cat/cockatiel gryphon. It would have a head, tail and little back wings

Now, my question is in regards to the wings. They wouldn't move or anything and they'd be rather small, so how would I go about adding a way to comfortably wear them with a partial?

The tried and true, if not uncomfortable, two elastic straps around the armpits? Magnets? Something magical?

I'd love to hear your input.