What are frugal ways to hang arts/crafts as a vendor?

http://www.everythingetsy.com/2012/06/craft-show-tips-diy-displays/

Mostly that depends on two things. What is attached to the art that will allow them to hang, and what are you hanging them on? Each and every piece will have a different answer. I'm going to work wire coat hangers in here somehow.

I have done many but these are the best I have seen.

https://www.google.com/search?q=diy+craft+show+displays&rlz=1C1BLWB_enUS700US700&oq=diy+craft+show+&aqs=chrome.0.0j69i57j0l4.7023j0j9&sourceid=chrome&ie=UTF-8

parents years ago took boards like shutters look at home depot/ lowes - put few together with small door hinges so they would fold - u then figure out what u want to hang where etc put this hanging hardware up- whats nice- the displays folded up it was fairly cheap-- sorry cannot remember wood used nor have photos hope that helps-- they ended up passing on to another crafter when they were done - I believe they put some bricks on either side in case someone accidentally tried to tip over I could see maybe putting door stops or something creative-- best