How to sponsor it? I'd like to sponsor with a copy of PD Pro as prize.

Here's a few space things painted in PD Pro:

Space Art:
http://thebest3d.com/dogwaffle/art/spaceart/index.html

more:
http://thebest3d.com/dogwaffle/wallpaper/earth-5billionBC-step2.jpg
http://thebest3d.com/dogwaffle/art/spaceart/on_a_sunny_day.jpg
http://thebest3d.com/dogwaffle/wallpaper/supernova-death-of-a-planet.jpg