Okay, having attended my first PY gathering and having enjoyed messing around on bikes, I am now a convert to the 'themed' approach.
Purely in my own selfish interest I hereby propose (arrogantly and no due respect for seniority) that we hold a gathering dedicated to Bicycles Made For Two (or more): the Tandem.
I'm confident that Roibeard will be happy to cruise by on the Pino, and SRD might grace us with the presence of the Helios. I'll bring the cheap'n'cheerful Raleigh Adventurer. Surely there must be more tandems out there: Laidback?
Even if you don't own (or can borrow) a tandem you can still have a laugh piloting or stoking/co-piloting the assembled duo-bicycles.
Any takers?