First, the Federal Reserve System has a catalog full of comics you can get for free, detailing money issues. There's even one called, "The Story of the Federal Reserve System" and one called... wait for it... keep your wig on... "The Story of Checks and Electronic Payments"!!!! Get over there and order 35 copies immediately! For free!
Second, here's a link to the Symbolic Butterfly Migration in Mexico. I can't explain it adequately, probably, but the basic idea is that you and your kids color butterflies, pack them into an envelope to go to Mexico along with the other real Monarch butterflies that make their trip down there in the fall. The symbolic butterflies are tended by school children in Mexico right next to the place where the real ones spend the winter, and then (since you include a return envelope) they send them back to you in the spring. Cool! The point is to build connections between children in North America, and also to include a small donation to help preserve the Monarch's territory in Mexico. We're probably going to do this, this week at Phi Bensa Zoe Academy.