Hexies in a pretty fabric form the body of the mitt. A complementary fabric is used for face, tail and fins. A third is used for the lining. Dig into your stash and pull out fabrics to make this up in your colors.
While the example shown here appears to be hand quilted, you can whip this up more quickly by doing the quilting on your machine.
The oven mitt pattern is from L&Y Patterns.