st0ned

Here are a couple that I have bookmarked:

http://www.stingynut.com/index2.html
http://www.azdtoons.com/portfolio.html
http://www.kreadult.com/work/toons-mascots/
http://punchbunny.com/
http://libertyofmind.com/portfolio-83-Headers_NSFW.html
http://sweet-cartoons.com/

I have yet to get a toon designed so I can't really recommend the "best". Really it depends on your taste anyway.

__________________
Conversion Sharks - 1,000+ adult dating offers, traffic management, and consistently high payouts.
We will guarantee and beat your current EPC to win your dating traffic!
Skype: ConversionSharks || Email: info /@/ conversionsharks.com