You can buy dry animal blood at a farm & feed type hardware store & sprinkle it around sheds or other areas to keep animals away & keep them from nesting under sheds, etc.
If you have a rabbit problem in your garden, you can put in a large fence, or try a natural spray - like Liquid Net Deer and Rabbit Repellent. Enviormentally safe, will not harm plants, dries...
While mothballs are useful for keeping away unicorns, gryphons, griffins, manticores and moths. They do not seem to work on armadillos. The only way I have found to keep the house from being over-run...