Guerilla Marketing - Communicate

You can't change the world if no one knows about it.We need to get the word out about IARC and what we do here, but we don't have a marketing team, or much money, so guerrilla marketing is our best bet and it looks like fun.Guerrilla Marketing is defined as any of a number of unconventional methods of marketing with minimal resources for maximum results; any marketing campaign that uses non-mainstream tactics and locations (Webster's Dictionary for the New Millennium.)
After an hour of so of brain storming my group of four came up with six workable ideas:

Crosswalk lights. (Printed) We want to put stickers with our web address on the button you push to get a walk signal. The sticker will look like a computer cursor clicking on our address to remind people every time they click the button to get a walk signal to also click to see what we're doing.
Trash cans. (Product) But not your average trash cans. Ours don't work. The top does not swing open. The lid will say, "What if design didn't function?" and direct the user to our blog.
All Tied Up! (Scandal) We want to tie mannequins or blow up dolls to light posts near bus stops with a sign reading, "Having trouble getting around? Try GTA!" We'll put up a link to our Bus/Shelter Shelter/Bus blogs and to the GTA.
Art Show. (People) Tate Street Coffee is within itself a community of very creative people. There are ever-changing art exhibits there and we think if we can fill it with IARCers work we can get noticed.
A scavenger hunt. (Places) No, we're not talking about a list and a bunch of people scurrying around looking for paper clips and men named Bob. We envision something more subtle. We're thinking small scale numbered Minerva statues holding clues to finding out what the IARC department is doing scattered around town.