FF your post brings memories of my pre-child years. OH never knew what he was coming home to :
litters of puppies or kittens to hand rear or tortoises to tube feed. Before that, broken pelvis dogs to rehab etc. Oh and abandoned ducklings one year.
I loved it
Now it tends to be ones with owners to go back to
Rules and H&S don't allow much to leave work premises these days
Hope you find a good home for bunnies soon