A quick DIY pot repair is to put a tiny bolt through each hole, with a flat washer on the inside and outside. Tighten down, and grind off the excess bolt. The friction fit and the tiny amount of corrosion forms a pretty good seal.
Perhaps an aluminum rivet would have a lower profile?
Put more holes in it and use it for black soldier fly larva?
Put more holes in it and use it as a plant pot
Put more holes in it and use it as a really big sieve...
Turn it upside down and use it to blanch plants
Use it as is as a rat and mouse proof grain store. (would need something to keep the lid on)
Use it as is as a place to depose of invasive weed roots. Just leave them there until dead.
Bury it and use it as an in ground beer cooler.
Skandi has lots of good ideas. I treasure big aluminum containers (the heavier the better) as container garden plant pots. They are easy to drill and they last forever, unlike almost any other sort of container. Pottery and ceramics are fragile, plastics biodegrade unless they are extremely thick and heavy, steel rusts away, wood rots. But aluminum just gets that little dull sheen of grey/white oxide and then ... it just sits there, for timescales longer than my remaining lifespan. I love love love them. A five gallon one is more than enough room to grow a tomato.
I love Skandi’s idea of an in ground cooler. Personally, I’d prob use it either as a compost bin, leaf mould bucket, bokashi bin or a planter. I’ve grown tomatoes and courgettes/summer squash in buckets of this size before, and seen people add a few canes to make a nice bean or sweet pea tower. Suppose you could do cucumbers or other climbing things instead. If you search YouTube, people have grown all sorts of things in 5 gallon buckets. Even corn would work.
Fascinated by anything that increases the sustainability of my garden. Geek out on composting, home made soil amendments etc. Fully intend to have my own homestead/mini farm one day 😁🌱🌻