Been messing with Blender a lot these past months. A cool free addon I recently picked up is "Cut Out Animation Tools", and it's pretty awesome for bring 2D paintings to life, albeit kinda tedious to work with.
I don't know if I'll ever implement these kinds of animations into my campaign, and if I did it wouldn't happen for a while as I need to get used to the tools first. Until then, I'm enjoying messing around with it.