I am avid visitor of the Neutral Grounds forums, specifically at the MTG General Discussions thread and the Off Topics thread. Whenever I get bored working and our tech guy has turned off the web filtering software, I would go there, read and participate to the interesting and funny posts made there by my fellow Pinoy Magic players. One particular post that they have which got my attention was the Planeswalker Design Contest, wherein you'll post your own planeswalker design with matching card art. Here's a few I would like to share with you guys.
The first two made by Kira (click to enlarge)
Next are works of mabalasik_produktionz
This is my personal favorite. Lol!
You can check the actual post in the NG forums here. You just have to register first though.