When you start gluing matches together, the shape of the matches (wider at the head) tends toward the form of a sphere. What to do? Youtuber All Is Art sez:
This was an experiment in how many matches it would take to get all the way around to make a perfect globe. After months of gluing and gluing and gluing we made it to the other side. Then the experiment shifted to see what it would look like when this thing burned. Enjoy!