This is whimsical piece of stop motion animation. It's a very laborious art where each frame of a film has to be set up, photographed, and then the next frame set up, etc. You may have seen this technique in movies like Wallace and Gromit where clay is used for the actors.
In this 1 minute 41 second film, this means that at roughly 20 frames per second, we're looking at 20 x 101 = 2,020 different scenes. Ouch! Let's assume that each frame shot takes 20 seconds (or more) to set up, that is, move things into the scene, re-arrange them, take a practice photo, and then a final shot. If that's the case, then this movie took approximately 11-12 hours just to shoot. That most likely doesn't include the time to think up this gem, try out some ideas, and final finishing. One word here: dedication.