I decided to make a set of nickels made up of only coins I found Coin Roll Hunting. Here is page one as an example. It is not complete, still searching my stash for a 1939-D. The "RARE" designation is primarily for whoever has these after me. I want them to know they are difficult to find. Comments on the concept are welcome.
Good luck... I did the same basically (I admit that 2 I got as gifts, and I bought the last 2) and is what really got my seriously started in roll-hunting. Even found a few buffalo nickels this way and other interesting odds and ends.
They are still out there. The oldest I have found is 1891 Liberty. Many Buffalos. I started another collection of restored Buffalo.