I don't have any doors to sacrifice, nor car hoods or doors. But I have some really hard, weathered juniper stumps in the yard. There was one particularly ugly one that I have wanted to trim. And when I picked up the Dumpter Mutt it said "I may be short but I can chop too". Here's the result:

The branch is 5" or 6" across by about 4" wide, kind of oblong. The juniper heartwood is hard..you have to hack at it.



A close up..you can see the heartwood



A hungry Mutt and his stump



Tasty! May I have another?



And the Mutt is still shaving sharp and no worse for the wear