I use woodstove pellets as litter- they are cheap and work great. I also buy quality hay by the bale- but I do buy what I call “treat” hay- I buy oat, meadow, orchard grass, etc hay and give my bunnies a handful now and then so they get some variety , as a bale of hay lasts me about 5 months or so. It is nice to have a cheap hay that I give in large quantities and I don’t stress about throwing a lot away in the litterbox- but they also have other hay as a treat for variety and the don’t get used to eating just one type of hay.
For toys I have used clean, ink-free packing paper.shipping paper that I have gotten in a package- I put a couple raisins in the paper and squish the paper into a ball. The bunnies smell the raisins and tear up the paper ball to find them- it makes a mess in their pen but it keeps them occupied and happy and picking up paper pieces when I clean their pen is a small price to pay for their happiness.
If you know someone that has apples trees and does NOT treat with any pesticides or chemicals- bunnies LOVE the branches. It is best to let the branches dry and to remove the leaves. My grandmother has an orchard at her farm that is untreated and whenever I am there visiting I fill pillowcases with branches cut from the trees. The pillowcases make the branches easier to transport and lets the wood/leaves dry. Usually a few weeks later I will take them outside and cut them into 6 inch pieces and then put them in a box- they are dry and the leaves have all fallen off to the bottom of the bag.
Julie