Notice I say "lead". Obviously I need some help.
Here's a list of stuff that I imagine will need to be taken care of:
1. Date/time and location, all need to be legal!
2. Find some folks who would be willing to get up and deliver some positive words;
3. Volunteers to make and hang signs before the event;
4. PA system;
5. Contact local media (Willamette Week, The Mercury, The Portland Tribune, The Oregonian, KATU, KGW, KOIN, Bikeportland.org, etc.);
6. Actually hold the event.
So I'm issuing a Formal Call for Help. Please, if you can help with any of these things, contact me ASAP in the comments. We need to get rolling with this.