Just so you know, this is still the same template.
and added a mouth. Now, I am well aware that this shark isn't anatomically quite right - the lower jaws of sharks, for instance, are shorter than their upper jaws. I wanted to use the template exactly as is and not tweak it too much. But you can, if you want. I was more interested in showing you possibilities.
Are you seeing possibilities?
Dolphins, orcas, narwhals, tuna, rainbow trout, coelacanth, sailfish, old Nessie . . . and hand puppets. With movable mouths.