In Photoshop I select the canvas (Select -> All), right click, stroke, and do an inside border - usually around 3px :)

Here's a couple other new ones;
http://z5.ifrm.com/30023/157/0/p1086305/zombiesarah.png

http://z5.ifrm.com/30023/157/0/p1086284/mewtwotwo.png

http://z5.ifrm.com/30023/157/0/p1086286/FerusGrim.png

Simply amazing.
If I had to choose, I'd say the Mewtwo is my favorite of the three. :)
Now you are getting me pumped back up to fire away in my Photoshop. XD

Here's a few more since I last posted:

http://z5.ifrm.com/30023/157/0/p1090771/borderlands.png

http://z4.ifrm.com/30322/96/0/p1140141/sotwhorror.png

http://z5.ifrm.com/30023/157/0/p1088785/folklore2.png

http://z4.ifrm.com/30322/96/0/p1140109/witch.png

http://z5.ifrm.com/30023/157/0/p1088910/crazyfrog.png

http://z5.ifrm.com/30023/157/0/p1088...loweensig1.png

Haha, I am tempted to requesting a set from you now. XD

Ooh! I really love the folklore one! <3
You make me look like an amateur. <3

Nice Halloween sig. <3

I like the last one the best! :mew:

It's been awhile, so here's lots of new ones!

http://fc09.deviantart.net/fs70/f/20...ik-d63ji2d.png

http://fc07.deviantart.net/fs71/f/20...ik-d639w21.png

http://fc07.deviantart.net/fs70/f/20...ik-d60wqn4.png

http://fc01.deviantart.net/fs71/f/20...ik-d60kb3n.png

http://fc03.deviantart.net/fs70/f/20...ik-d60h3hn.png

http://fc09.deviantart.net/fs71/f/20...ik-d60h365.png

http://fc06.deviantart.net/fs70/f/20...ik-d60ery8.png

http://fc06.deviantart.net/fs70/f/20...ik-d60d11o.png

http://fc08.deviantart.net/fs71/f/20...ik-d5wfvuo.png

http://fc06.deviantart.net/fs70/f/20...ik-d5wecho.png

http://fc08.deviantart.net/fs71/f/20...ik-d5wbpx3.png

http://fc02.deviantart.net/fs70/f/20...ik-d5wbpox.png

An amazing job as usual.

I wish I was talented in making sigs.