Contest - $25 Google Adwords Reward

I have this $25 Google Adwords advertising coupon, and I don't know what to do with it. I've spent already over 70 dollars on google adwords for Christian-hosting.biz, but I never saw much results. Anyways, I'm hosting a contest and the winner wins a $25 Google Adwords Coupon which expires December 31st if you don't redeem it by then. Anyways:

This will be a banner design and logo design contest. Each contestant will be required to post a 468x60 pixels banner for Marso (http://christian-hosting.biz/test.html) OR a vector logo for Marso (http://christian-hosting.biz/test.html)

Winner will be decided by October 25th, 2005

Multiple entries are acceptable. GOOD LUCK EVERYONE!