I looked at t-shirt quilts all over the internet to get ideas, and this is the design I went with.
It was kind of hard to find manly fabrics, but since he's a scientist, I thought leafy green fabrics weren't inappropriate. :]
I backed each shirt with fusible interfacing to stabilize it.
The borders, binding, and back are a blue sheet. In fact, since my sister's baby quilt was also in need on fabric for the borders, binding, and back, I purposely picked a color that would coordinate with both quilts. This one was tricky to quilt. I just stitched-in-the-ditch, but since it was so huge and also since I don't have a walking quilt with my new machine, the fabric tended to bunch of funny. I think most of it isn't too noticeable, especially since I was using a really fluffy batting. I definitely will invest in some spray adhesive for batting for the future. I almost bought some this time, but it was like $15.