You could drive the chainsaw blade in it few times, fill it with black powder and split it with the explosion - bang! and ready for the sawmill
The guy who farms our land was telling me about the farmer next to him who had a hoganator for blowing up ground hog holes. The police asked him not to use it because they were getting too many calls from neighbors who were afraid that the terrorists had come to Pennsylvania. I'll bet splitting logs with black powder would have much the same effect.
Chris