bleh, I know that I'm not in this contest, nor do I want to be... but, Renders are easy. Always easy .-. I do them all the time and they generally take about 10 minutes if you know what you're doing
P.S. He's looking for something like this:
.

Note the transparency around the character... It makes them able to be used in Graphics much better because you can put spiffy backgrounds on it and such.
Took me all of ten seconds .-. So difficult. I know it isn't perfect, but 1. I'm not competing, and 2. I'm lazy :P
If you suck with Computer graphics, this is a hard thing to do. Otherwise, it's really quite simple. .-.
P.S. You can't make things transparent with Paint, so yeah.