Repurposing large square water tanks?

I have access to a handful of those large square/cubed caged water tanks (like this: https://m.uline.com/h5/r/www.uline.com/Product/Detail/H-3886/Tanks/IBC-Tank-275-Gallon?pricode=WZ395&gadtype=pla&id=H-3886&gclid=Cj0KEQiAwrbEBRDqxqzMsrTGmogBEiQAeSE6ZWqhuyu7il1MdlWnS0lQvyA9BZb3agQ-0FOM2JtDymkaAlxj8P8HAQ&gclsrc=aw.ds) and am looking for suggestions on how to repurpose them.  At least one has a huge crack in the bottom, so it won't hold liquids.

Thoughts?

Lucky you!

Aside from the obvious, maybe bury a couple for cold storage for veggies. Could maybe also be used in creating a greywater/blackwater worm system, or as fish tanks in an aquaculture system. Oh, the possibilities!

I got a few as well and I am thinking about using them for biogas production. There are many videos on youtube regarding this.

not sure about the ability to cope with pressure once they have a crack in them . But certainly raised beds might be a good idea .

Yeah, I agree: explosive gases should be contained in a container intended to handle that.

What about cat or owl houses? Storing fermenting drinks? Laundry basket? Storage bin for seasonal stuff? Storage bin for completed crafts awaiting distribution? In- ground slow release waterer in sandy soil?  Cut =Sled? With wheels attached= Cart ? Water wall?

I was thinking of turning at least one (with the crack) into a bulk feed bin either by using it as-is or by removing the plastic tank and installing a plywood box inside.  I figure I can probably make the box larger (taller) than the dimensions of the cage, since the cage can be at least partially dismantled, thus providing greater capacity in the same footprint.

I've seen them disassembled and used as crates/hutches for housing and/or transporting small livestock (calves, sheep, goats), with the tank providing shelter and the cage keeping them in--but I don't have much use for that.

Thanks for the replies so far!  It seems like there ought to be a million and one ways to repurpose them, but I'm drawing mostly blanks.  I'm waiting for that, "oh, duh" option to be thrown out there...

Take out the plastic and use the cage to store firewood.  Ideal if you have a forklift to move the wood to your back door once it's dry.
Rainwater collection tank
Thermal mass for greenhouse
Cut top off and make into redneck hot tub
Doomsday prepper piggy bank
Aquaculture
Sell them on Craigslist and buy something you need
Garden water tower. I did this by putting it 8' off the ground by my remote garden.  Small pump from rain barrel to lift water up into tank, gravity feed to water with.

This may not be what you have in mind but I purchased 2 to use for thermal storage.  They'll be buried below a greenhouse and used with an air to water heat exchanger system to store the daytime greenhouse heat during the day, then release it at night.

They are good for fermenting things in as the red lids have an excess air release valve on them. You might want to know what was in it previously if you use it for food though.

The ones with the crack in the tank can be turned over and you can cut the cracked top half off and still use it that way to plant things in or catch liquids.