Yes... that's a regular volleyball ball next to the main parts of the stove that still need to be put together. Not really sure now how to handle this baby as a cooking stove... but I guess that I'll figure that out later on, if I find a proper size pot to put on top of it!
There's a simple but handy trick that I am going to focus on now: it's about how to use efficiently a hand tool to produce large amounts of chopped out biomass, like branches and big leaves... you could use this trick whenever you need to process large amounts of biomass to add to your compost piles, like I did before.
So, check this out.