So, here's my Bones 4 Tree of Despair all painted up. I drilled 3mm holes into the branches and trunk, installed some neodymium magnets, and then affixed magnets to the backs of the victims and bases feet of the vultures. I also made some tree canopies out of sculpy and flock, and then set those to magnets to attach to the boughs as well. Decorated a 3" round base with grass tufts and extra skulls and rocks, too. Hope you like it.
Basic Tree
Victims
Tree Canopies