Looking for Draco gliding lizard-style rib-based "wings"...

Cowrie

As the title states, I'm looking for a set of "wings" that looks rib-derived rather than limb-derived, similar to the gliding membrane of lizards in the genus Draco.  Is there anything out there like this?  I'm wanting this for use with Genesis 8 models, but I'd be perfectly happy "kitbashing" on the wings from a creature model or something.  While I'd prefer a set of wings that can be folded down against the sides of the body, I'd be fine with a pair that's fixed in a spread position.  Either free or paid is fine, provided it's not too terribly expensive.

Example of a Draco lizard with wings extended, for reference: