Iowa recently added a couple of new License Plate options. Every natural resource plate sold yields $35 to REAP and $10 to the wildlife diversity program (non-game wildlife). When those plates are renewed each year, they provide another $10 each to REAP and $15 each to wildlife diversity.
They've had a couple of the plates for years. But one of new ones features beautiful Brook Trout, with a guy fly-fishing in the background. I HAD to get one!