I did it ... I sewed a top with Jersey like material. I think it's actually interlock, but I am not sure. It was a mystery purchase from fabric-a-brac. I used the free Dolman Sleeve Top pattern from Cation Designs.
It came out alright, although the directions say that you should sew the sides with a straight stitch and the first time a did it and then tried it on the stitches ripped where the sleeve turns down the side. I just resewed it with a zigzag stitch and it was fine.
I might make one more version from it with a lower neckline, but it's getting warmer now so it's back to T-shirts.