I was on Amazon doing some shopping as one does, and decided to check my recommendations. Most of them made sense; "because you bought cat toys, maybe you want cat food", or "because you searched for water bottles, here are some more water bottles". Then, I got this one:

The thing is, I know the Amazon algorithm has like a bajillion data points, which means that somehow, the purchase of these items has been connected multiple times in multiple ways and it somehow makes sense to recommend a light-up turkey hat based on the purchase of bikini wax.