t shirt template

[al.da.drone]

Al da Drone here, hopefully this post wont go on for a whole week like my last one. Anyway I am wondering if there is a T shirt image that is on Gimp so I can use it as a mock up for my T shirt designs.. I know that I can export my design which I'm the first one to admit that it needs improving, and put on to a  T shirt mock up. I would find it easier to do it all on Gimp that way I can just keep working on it...

Course if there is any tips on T shirt design on Gimp I would welcome it.

Thanks