At least, I think they’re dogs. Some of them could be rabbits, mice or bears. Lots of fun to design and animate characters, especially using Photoshop with its lovely drawing tools. Couldn’t get the gif down much below 800K so it may be a little hefty. If I were animating a longer project or for broadcast I’d output a sequence of PNGs and take it into AFX, but for these purposes it’s just fine as is.
Click on the image for a larger version. Animated in Photoshop CC with Stéphane Baril’s excellent AnimDessin2 tool.