I got some nice keycaps when I was building my first mechanical keyboard. Aside from that… Soldering gear, 3D printer parts… Cat toys, preflashed smart bulbs (so I can use them completely locally with home assistant), magnets… And generally any time I see something on Amazon that clearly is just rebranded Chinese stuff, and I don’t need it quickly, I can find it on there for a fraction of the price.
Never used it myself, but my mother has told me when she was much younger she tried pot a few times and stopped because it just put her to sleep, and this was well before the strong strains we have today.