My meat shop cuts a TON of oxtail, and we generate a TON of beef fat as a result. I'm already selling it cheaper than anyone else on the block (.75 a pound if any of ya'll around Middle Georgia happen to need any for deer season.), but that's not even coming close to moving all of it. I've heard about the Bird Seed Balls trick, but my foot traffic doesn't really support that niche of a product just yet. I've been putting a lot of thought into rendering it for Tallow, and was wondered if anyone knew the yield of that process? I feel like I could sell a fair amount of the Tallow as a cooking grease, and I feel like my customers would flip if they saw homemade scented candles and soap made with our actual beef trimmings.

Are there any other tricks to moving beef fat I'm missing? 

As a side note, anyone here ever tried moving their "bone meal" out of the saw on customers? I've got one gentleman that buys $25 dollar worth every week at a dollar a pound, feeds it to his dogs. Great for adding iron to their diet apparently. Works good for the same application in gardening, adds iron to the soil.