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The highly desired fat for baking is the leaf lard (kidney fat). Kidneys are generally they most temperature sensitive of the organs for proper functioning--especially with an animal that sleeps for long periods in winter. The fat surrounding sets up at the higher baking temps.
I second what Remnar said...I think my Gma and Mom just used it in a pie crust recipe in substiture for crisco or whatever...from my memory it was good. And we used to melt the fat down add a little mink oil and put it on our hunting boots... multiple uses