Beaver, I have found can be a 'hit or miss' bait for canines, especially coyotes in 'warmer' weather. Now. . . let it get cold and most coyote will feed on them. Warm up and I have seen coyote walk past them like they weren't even there.
That may be totally off in other parts of the country, Idk ? Here in Central and SW Ohio where I trap, coyote will feed on a January beaver, but shun them come spring.
Ground up and ingredients added, it's a fair bait down a hole set, but then, isn't most meats slightly tainted and then preserved. Yes, some better than others.
I like it. What tools do you use to do the carving?
My old next door neighbor was really good at carving wood. He used to put pieces in the Artistry at Wood shows. He carved mostly cowboys and Indians. He might still do it. I haven't seen him in 17 years.