I am reheading a couple of drums that were poorly made. The rings are too big. The wood is cracked and badly carved. They were made from cheap softwood. The roping is a mess. When I took off the old skins they were filled with insect eggs. I think these drums were meant to be coffee tables, frankly. I almost feel bad putting new goatskins on them. I take some solace in the fact that said goats were made into stew that fed some families in Mali, so their lives were not completely wasted for the sake of bad drums.
But, I will say this, even working on a bad drum is a learning experience. In this case it is mostly what not to do... but even that has value.