i just finished a "no batting" t-shirt quilt for my graduating cousin. Usually... I cut a piece of fusible interfacing the correct size, and then center it over the t-shirt design. After fusing, I rotary cut the t-shirt. Since I was in a hurry, I skipped the interfacing step, and it worked out just fine.
The backing was that fuzzy, heavy fabric, which I had never worked with before. Since I thought batting would make it incredibly heavy, I didn't use any batting.
I cut the fuzzy backing piece larger than the front piece, then folded the fuzzy side to the top for a fuzzy hemmed edge.
And, I do quilt in the ditches.
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