The Wonder Works Nature Collector’s Swap Shop takes inspiration from nature swap programs run by other museums and zoos in the United States and Canada.
When Mr. Eric’s children were young, they used to trade for natural objects at the Brookfield Zoo’s Hamil Family Play Zoo. The zoo’s nature swap program is currently on hiatus, although it might come back soon in a slightly different form.
The Science Museum of Minnesota in St. Paul, Minnesota, includes the Collectors’ Corner in its Collections Gallery: https://www.smm.org/collectorscorner
The Houston Zoo in Houston, Texas, has the Naturally Wild Swap Shop: https://www.houstonzoo.org/explore/exhibits/swap-shop/
Science North in Sudbury, Ontario, Canada, runs the original Nature Exchange, one of the oldest nature swap exhibits: https://www.sciencenorth.ca/science-north/
Science North has developed Nature Exchange exhibits for many other museums and zoos. Some of them are linked to, below. The others are listed in the Wikpedia article: https://en.wikipedia.org/wiki/Nature_Exchange
The Santa Barbara Museum of Natural History in Santa Barbara, California, hosts a Nature Exchange in its Curiosity Lab: https://www.sbnature.org/visit/exhibitions/7/curiosity-lab
The Tulsa Zoo in Tulsa, Oklahoma, runs the Cox Nature Exchange: https://tulsazoo.org/cox-nature-exchange/
The Canadian Bushplane Heritage Centre in Sault Ste. Marie, Canada, runs Northern Nature Trading: https://www.bushplane.com/nature/
Nature Collector's Garden and Nature's Swap Shop 