Oh, this one? I have less than 10 minutes invested in making it. I had about half hour invested in the polar bear thumbs up GIF. Most time I ever spent on a GIF was 3 hours, but I was paid $200 for it, so it was worth my time.
Very specialized client. Wanted a clear rendition of a chemical formula. Had to be done in a precise order. I don't know chemistry, but he sent a video. I turned it into a drawn GIF per his instructions. He felt it worth the money. It was to go onto a chemistry site.