Extreme Ironing on Rivelin Needle, Sheffield, UK
"Extreme ironing" exists. Really. The sport (art form?) gained some notoriety after a documentary called "Extreme Ironing: Pressing for Victory" (2003) followed the British Extreme Ironing team during the first Munich World Championship.
Choose a location - from a local park to a cave, mountain top, or beach.
Combine it with another hobby - water skiing, snowboarding, skydiving.
Could you stop by and pick up my pressing as well?
If ironing is not your thing, there's always the Washing Machine club.
Or the Vacuum Cleaner Collectors club.
You know what? I hereby lay claim to "The A to Z of Unusual Hobbies and Collectors" for next year's 2017 #AtoZChallenge! Wish I had thought of it for this year...