I got quite a few pails of used cooking oil from kfc which seems to work awesome mixed up with some oats and thrown in a 45 gallon drum. Be careful not to make to hole too big you want the bear to roll it around for awhile and have to work for his dinner. Check out your local doghnut shops as well they sometimes give away old stuff which is mmmm good to a bear. And for the beavers, i tie on to the tail of a beaver with some bailing twine and tie the other end to my hatchet, throw the hatchet over a high up strong limb then pull the beaver up the tree and tie the other end up. Make the critters climb up there to get attem. The point is not just to bait, but to keep the bear there as long as possible and make him work for food. I also work summers at a honey bee business so i have plenty of old honey that my boss gives away to me. I usually melt this up and pour it on the ground and all over the barrel.