Flexi-gator

It's a flexible alligator. Or crocodile.

**If you're not sure which to use, I recommend `flexi-gator-5.stl`.**

This is designed to be easy to print. It's uses print-in-place hinges, and it's already oriented correctly for printing (on its side, with the tail flat on the bed). It doesn't need supports, and there are no crazy overhang angles. I've also successfully printed this down to 50% scale and up to 290% scale (see pictures for these sizes).

This was inspired by a couple of designs that deserve some credit: first, the classic [Flexi Rex with stronger links](https://www.thingiverse.com/thing:2738211), which provided the starting point for the hinge design. The [Flexi Alligator](https://www.thingiverse.com/thing:2820925) design also gave me the inspiration for a multi-segment alligator. And some credit for the toy-like aesthetic goes to the [Lego alligators](https://m.media-amazon.com/images/I/414-sp1gr7L._AC_SS350_.jpg) that I grew up with.

For size reference: the five-s