I use Hob-E-Tac for making trees. It is very sticky and I coat all the branches of the tree I'm making then sprinkle on the ground up foliage I want to use for a particular tree result. Looks quite real and cost is very low compared to ready made trees. I have seen a complaint that a modeler may have gotten a bad bottle of this stuff. It is very sticky and you have to take care not to get it on the outside of the bottle or your hands. Hard to scrub off. I always wear disposable vinyl gloves, problem solved. Always keep the bottle tightly closed.