Help conserve heirloom seeds by adopting a crop from Native Seeds/SEARCH.
Here are details from the Native Seeds website:

"By adopting a crop you directly support native plants in the field, keeping their seeds alive for future generations. After harvest, we will send you a report about your crop, including a picture and information on your chosen plants growth to maturity. And for a donation of $100 or more we will send you a packet of the newly harvested seeds!"