Calcium is important for many plants including peppers and tomatoes. We enjoy using the egg shells too, but had never heard of whole raw eggs. You also included a lot of other good choices like ashes and leaves.
Do you ever use fish? We like to bury them under our plants too.
Fish is also a great source like I mentioned about pests like racoons and rats...fish is even a better Target for them but a very good natural fertilizer.. tks for this addition... Check out also eggshell uses for humans and pets😉