Hello,

this is another art car from "Burning Man". It's called "El Pulpo Mecanico" which is Spanish for "the mechanical octopus".
The car was built by Duane Flatmo and Jerry Kunkel in Arcata California, Humboldt County.
The octopus can move its arms, mouth and eyes and while doing so even spew flames from each of his arms and from the top of his head. The car the octopus is mounted on is an absolute mess, which made it extremely hard to build in Minecraft.
There wasn't any framework to add things to and there were so many little things all over the place. It actually took me an entire day to build this not very big car.

The idea for the in-game flame effect came to me while building. There are two command blocks for each flame. One makes a narrow lower flame, which comes right out of the octopus's arm. Another command block creates a wider flame cloud above the first one. That gives the impression of a real flame, because hot gas expands as it rises.

Flames can be toggled for each arm separately, you can turn all of them on simultaniously or make a "merry-go-round flame".
You could even make very complicated flame sequences with some chained command blocks. But I thought I'd leave that up to you, so you can get creative yourselves with making "flame art".

Enjoy!