Interesting Borders

I love it when photos are printed with interesting borders, such as, a bit of the negative left in deliberately, or that effect where the edges of the picture arent quite straight, cause they've washed the developer on the paper.

Anyone know of a Photoshop plugin (preferably free) that'll simulate some of these effects?

More of a simple tutorial to play around with at espresso graphics.

Also, perhaps register at the Adobe Forums and check out the Photoshop exchange where you can download plug-ins, actions, scripts, etc. Most of them are free. They have a very good selection of borders..

There is a few free ones here:

Grunge Photo Borders

I've heard this one recommended, but I haven't looked at it myself:
BorderMaker