By cheap, I mean less than $20 or so. It’s going to hold a CA Cargo guitar, or a Martin LXM that’s all laminate - I just need something to hold it while I’m out there, the guitars will go inside when I do.
Right now I’m leaning toward this one:
Portable Stand for Acoustic and Classical Guitars by Hola! Music
https://www.amazon.com/dp/B00BLQ7M4E..._fNSyDbB74H4TH
Seems to be all or mostly plastic, not too spendy, and will keep it off the concrete floor and brick walls.
The hanger idea is pretty good - I have a deck above the patio, so I could mount it on the side of one of the joists. It would be more convenient to have something I could reach sitting down though.