Yeah, Zoroastrians practice sky burials, where the bodies are placed on platforms for vultures, who are thought to be messengers from heaven. Joking aside, I think it's a pretty cool and ecologically conscious way to go and I wish it was more common.
If I could a sky burial is how I'd like to be disposed of, but unfortunately both the law and my family are opposed to this idea and I'll be too dead to argue with them. Next best thing would be a natural burial with a tree planted over me, I can't think of a better grave marker than that