Awesome! I'll link the video here, for convenience.
Pulling stuff in is a bit easier with 1st person - that way you can also roast em at the same time. :D
The chain is a bit of a problem, unfortunately. I had to arrange it in a way so it actually pushes the maw open, which works fine most of the time, but I guess also puts quite some stress on the structure. Since the mouth is quite large, it also floats quite a bit, which I tried to counter by adding weight - but too much, and again stress increases again, especially while accelerating. Fun nonetheless and good practice.
Would be awesome to have something like a real extender block, that basically just pushes. Would have to be a bit flexible, though, or it will break again. :)

this is so good I had to make a video! didn't quite manage to pull the sucker in but chomped him nonetheless
https://gaming.youtube.com/watch?v=8XBCugr28q0&feature=share