I made my own (without a serger) just using a zigzag stitch on the edges. I cut up an old flannel sheet and used the biggest zigzag stitch my machine had. After the first few washings, I had a lot of loose threads, but after I trimmed them, no more issues. I found that my old flannel sheet set was perfect. It had been washed tons of times, so it was really absorbent. Good luck!
9/6/12 at 12:27pm