Done with 3B pencil (Koh-I-Noor) on paper, animated in Krita.

I chose caramelldansen, as it only has three frames that needs to be drawn, rest is just mirror and re-use.

Not awfully bad, though getting the proportions that are supposed to move in each frame is harder that I anticipated.

Done in... [quick look at the clock]... about and hour? Hour and a quarter? Paradoxally, getting info on how to set the visibility on my layers in Krita took about 20 minutes, the actual drawing was much faster.