Warning: This is only suitable for sexy people.
In this walkthrough of a design process in illustrator, you'll be shown how to make an epic organic illustration completely out of defaults in Illustrator. It could very well be used in a funky T-shirt! I will be continuing this artwork in Photoshop, so look out for Part 2 of this tutorial - coming soon.
If there is any part you weren't clear on, please feel free to make a comment and I'll update this post with an FAQ. Thank you for watching :D
http://www.anothera.net for more.