It's so nice to have blocks ready-made to work with. I participated in a swap for cat blocks some time ago on About.com quilting site. They are having another swap, and I'm debating if I want to join again. It's nice to pull out blocks and put together a quilt.
I had the perfect backing--fish in a flannel. I also used an inexpensive fleece throw that Pat got a while back for batting. We thought we could use them as backing without batting, but that didn't have wonderful results. I have another kitty quilt top put together and ready to quilt.
They are a little more time consuming as I like to do my own design on the kitties, and then the frames, etc. But the second one should go faster!