Do you have a DIY recipe or plan to keep rabbits and chipmunks out?

Human hair works for my garden.

Irish Spring Soap/chunked and or grated

plant marigolds around your garden to keep bunnies out, not sure about chipmunks. Everything stayed away when we had a dog.

Your local garden center should have or be able to order for you :powdered Coyote Urine,"...it smells like a coyote was recently in the area [to the critter] but you will hardly smell it at all. Make sure that you spread it when you know that the critter you are deterring is out of the area so you don't 'box it in' by mistake.

If they attack only certain things lay a mouse trap baited with peanut butter by that area. The trap isn't big enough to catch them, but the snap does scare the bejesus out of them and they avoid that area like the plague. I have had success with that and they don't even venture there for weeks and once two months. I do both the Irish spring and Cayenne pepper with good results also. I just have to remember to renew it when it rains if it dissolves or washes away.