Here's an interesting conceptual project:

Subject: Knocking on Bricks
Hooray! A new site was born!
By Shoshana Brand and xtine
Please check it out:
http://www.knockingonbricks.com

"Part of the spirit of this project is mean-spirited.
Like the girls of the cult film, Heathers, curators
Shoshana Brand and xtine created false correspondence
that taunted the unsuspecting. Imagine writing to
institutions and large corporations with absurd, yet
socially engaged proposals, and understanding from the
start that rejection is the center of the concept.
Brand and xtine's idea begins as a prank percolated
through an understanding of bureaucratic systems, and
the way art institutions, governments, and
corporations function."

-- Kim Abeles 2007