I don't know as I'd use a full bicycle, but it might do fine hooked to a single front wheel I carry around.
With a single wheel, I could have a choice of a couple short messages on different arcs of the wheel.
With more than one wheel under my arm, I could leave variations of a single theme.
The idea has merit, though also has limitations. Warrants further study.
2014-08-12 04:35:19