Here are a few:
https://organicmaps.app/donate
https://www.freecad.org/sponsor.php
Permanently Deleted
xkcd #2956: Number Line Branch
xkcd #2949: Network Configuration
xkcd #2945: Broken Model
xkcd #2944: Magnet Fishing
xkcd #2943: Unsolved Chemistry Problems
xkcd #2941: Cell Organelles
xkcd #2939: Complexity Analysis
xkcd #2938: Local Group
xkcd #2936: Exponential Growth
xkcd #2935: Ocean Loop
xkcd #2934: Bloom Filter
xkcd #2933: Elementary Physics Paths
xkcd #2932: Driving PSA
xkcd #2931: Chasing
xkcd #2930: Google Solar Cycle
xkcd #2929: Good and Bad Ideas
xkcd #2928: Software Testing Day
xkcd #2927: Alphabetical Cartogram
xkcd #2926: Doppler Effect
xkcd #2925: Earth Formation Site
Not even that. For example if there are 10 assembly lines in parallel that the slowest step takes 60 seconds, you still get a phone each 6 seconds