"Promotional" Postcards

You will be assigned one partner. To that partner you will send 4 different promotional postcards in an envelope, and a note explaining what made you pick at least one of them and if you plan to attend any of them.

Promotional postcards can be for a festival, live show, circus, event, books signing/release, art exhibit, concert, play, travel/tourist related or anything of that sort. No business promotional cards please.

Where would I find these types of cards? Check libraries, galleries, tourist info centers, bookstore counters, art supply shops, cd shops, cafes, bars, community centers, etc.

Your postcards need not be traditional postcards size or shape.