I’m wanting to drop some small diameter green trees /no leaves, and have them stand vertical or at least at 45 degrees. I can figure out the weight for the base but wondering about floatation to keep the tree from lying horizontal on the bottom in the mud. I’ve done lot’s of bed building just never done this particular method of floating the tops. Any suggestions for flotation is appreciated. I have a unlimited supply of small gum trees so thought about using them. Thx.