There is Tucson Cactus & Succulent Society.. one of the services they provide is rescuing cactus from being destroyed during construction of buildings, highways, etc. and then they sell the rescued plants! I might have to go check it out and see if they have anything I could use to grow food for Flash!
http://www.tucsoncactus.org/html/Rescue Sales.htm
http://www.tucsoncactus.org/html/Rescue Sales.htm
