Here is a recipe that will work for you. Take a 4 gallon bucket and fill it half up with fresh hardwood wood chips (like a brush hog will spit out). I often will pick up from where a road crew has done some ditch clearing of willows. In a quart of water mix two sets of fresh castors well chopped up and shaken and slosh this into the wood chips. With a cup of gliserine add the contents of one male beaver's oil sac. Mix up everything really well in the wood chips and you have a week's supply.
As you take beaver squeeze out a little of their castor juice and add to the bucket as it improves your chips. Just throw out a nice hand full at each set on a muddy slicked up mud pile.
Note: Sharpen your knives.
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"Beaver will shine again!"