really? all of the adults in my world got upset with me when the kids got fleece backs, but they didnt...they wanted fleece too, it's so soft!(they call them the 'get-naked' blankets...'cause it's so soft)
that being said, if you really want to cover a regular backing with a temp-fleece back why not just put the top and fleece face together...stitch around with a larger than normal stitch (but smaller than a basting) like 6-8 stitches to inch...leave a space for turning, and turn it right side out, stitch opening closed then you could just put some ties here and there to hold it all in shape. :) just a thought...