Baseball, actually. Back a few years ago the Oakland A's Had Jose Canseco. Then they acquired Felix Jose. Then I realized that some other team had a player with the last name of Felix. Then there was another player with his first name as a last name. I think it was Junior Felix. So the string became Ken Griffey Jr. Felix Jose Canseco.
Ken Grifey Junior
Junior Felix
Felix Jose
Jose Canseco
I have been doing name strings ever since. Labeling my pictures and doing Center Ice and then Ice planet triggered it.