Our costumes are the ever-popular big ol' pieces of fabric with a hole cut in the middle for the head. I am a person with absolutely NO sewing skills, and I can accomplish this much! A little rope, twine, etc. for belts and headbands, and you're good to go. We just fold our costumes and store in bins rather than hang.
Thrift stores are your friend! I have costumed entire shows from thrift store clothing (and it looked fabulous, if I do say so!). Look for props such as baskets, clay jars, brass and wooden pots and bowls, etc. at thrift stores, as well. Good luck! JOY