Every once in a while I find something that crosses into two or more of my hobbies. An example of this would be an outdoorsman that also collects stamps collecting duck stamps.I have just found one that covers three of my hobbies.

The first two are kind of obvious... stamps and coins/medals. The third one is not so obvious. The medal is of Johm Adams. I am into genealogy and John Adams is my 4th cousin 7 times removed.
If you have anything that links your hobbies together I'd love to see them.
Richard