Nice idea! Not sure how many people would be interested in t-shirts but it is something to keep in mind. Also, for the back you could use the full logo. The 3D part was just the cut so I could use it for profile pictures, but there is also a full logo spelling out the whole "Eclips3D" with the eclipse on the end. Not sure where this is on the internet but if ya want it I can send you a direct link!
The small logo version is reasonable resolution. Although until I put it in a photo editor I hadn't noticed that the 3D) was raised lettering with a shadow (Nice). The large logo version I found is rather low-res and has bad jaggies. The Autodesk file from Jordan would work better.
Did you ever post Jordan's contact information for Laser cutting?
P.S. It looks like Jordan is registered on this board.