To make new animals, I followed the basic pattern Animal Slippers, but knit them slightly bigger and didn't felt them down as much.
For the lizzards, I used stockinette stitch instead of garter.
I thought the lions would be puppies, but the orange yarn didn't felt, so I cut down the ears and added a mane.
The mice were going to be puppies, too, but they came out of the felting process looking more like mice, so mice they became.
On this set of slippers, I knit the ears on before felting, and they came out smaller than I anticipated.
The frogs are frogs.
It remains to be seen if these slippers are as popular as the originals.