For christmas last year (2021) I got the Lego Lamborghini, which has 3,696, to go with my Lego Bugatti that I was given a previous christmas and I decided to timelapse the build.
There wasn't many challenges in this project since it is a official lego build. The first challenge I ran into was putting all the clips together to make the mini movie because it took me roughly 10 hours over 6 consecutive days to build it so there was a lot of footage. Even once I had managed this, I was still unhappy with my timelapse as it was too long. So I used the speed up feature in iMovie to make it even faster, I had do this multiple times, ending up with a video that is overall (timelapse and speed up) 1000 times faster than real time.
I am very happy that I chose to timelapse it, even if it was more of a challenge than I first expected, since I can watch the whole 10 hour build in 36 seconds. You can watch this below!