We have had rabbits for years but when our very last Poo Bunny died we made the switch to show bunnies. A Poo Bunny is a rabbit you keep to eat the leftover lettuce and whose poo helps to grow the lettuce in the first place. Show bunnies have the obvious difference and the less obvious ones involving driving and spending more money.
Because our yard is infested with fox, raccoons, possums and the occasional eagle, osprey and hawk, we keep our rabbits inside the house. Better a bit more work than finding a trail of bunny fluff and no bunny.
As usual I was the idea generator and Mark was the manifester. We bought cages for each rabbit. I measured the cages and went to the hardware store and measured Rubbermaid totes to be sure the cages would fit inside. Mark cut 2x2s and screwed them so that they are about 5″ down inside the tote and run side-to-side. We put the cages down on top of the struts after removing the drip pans. This way the feces and urine fall through the wire and go into the plastic box.
With this set up, we can go several weeks before needing to empty the boxes and the bunnies cannot urinate out the sides of their cages. And they will if there is no guard.
I will sprinkle shredded paper or shavings on top of the litter in the tub once a week or so to keep the smell down and the cages are on a sun porch, not in our house proper. If they were in the living room or some such, it would probably be necessary to empty the boxes a bit more often.
Overall this has proven to be a very workable system for our rabbit keeping needs.