Kaitlyn's Computer Graphics

Artist Promotional examples:

This isn't an artist promotional, but it is still great!

From Core77:

"This rogue ad effort for a party store cleverly makes use for those nasty subway grate, passing-train blasts of air. Great tag line: "Surprise Party Specialists," which is perfectly nice until an unsuspecting jittery person suffers a heart attack or, more realistically, until those streamers turn black (we're guessing about 10 minutes in NYC)."

Very cool, very guerilla.

For some reason Real, hardcore artist promotion is hard to find, especially good examples of which but I am finding lots of good product/company promotions like this one:

There's a long love letter that goes with this but It's pretty self-explanatory.

Here's a pretty simple straightforward promotion:

From Swissmiss:

Today begins Authentic Job’s annual New Year’s Promotion, but this year is different. They’re calling it the Twenty Ten promotion. It works like this: Post a listing between now and January 22 and you’ll receive 20% off your listing. More importantly, 10% of your purchase will be donated to Charity:Water to help bring clean and safe drinking water to people in developing nations.

Here's a nice business card: