Bunny poop makes a great fertilizer as it doesn't burn plants even when applied "fresh". It has the highest concentration of nitrogen and phosphorus of any animal manure. Smell is minimal and the pellets break down quickly.
Ours have shavings in it which isn't a problem as the shavings will compost as well. We put some on the flower bed in the fall when it is done blooming for the year. In the spring when I rack the dead leaves away from the hosta plants before they start to come up I dump numerous fresh pans right over and around the shoots. The shavings help keep the moisture on the plants and also act as a barrier to grass intruding around the hosta. I've also put it around the Forsythia bushes in the spring. Or any new tree or shrub we put in.
This year it has been especially handy after tearing down the old horse barn and reclaiming the soil underneath for more lawn. We put down loads of bunny manure with the Kubota and then seeded with grass seed and let the rain showers do the rest. Within a week grass is coming up.
Years ago, a Netherland Dwarf breeder who also had a greenhouse used to sell grain bags of rabbit manure along with plants. If you don't want the hassle of bagging it, list it on Freecycle or in Uncle Henry's Swap Magazine and have people take it away in their own buckets and bags.
There is even a YouTube video showing how to screen, compost and sell bunny manure at:
https://www.youtube.com/watch?v=qO9hq6YWgms