To end this series we're going to quickly go through some honorable mentions that don't have a deeper story but are worth knowing.
Netherlands, Portugal and Greece all adopted the Italian created system of a gold star for every 10 championships. Israel, Turkey and Russia have the same system but for every 5 championships. It is also important to note that as of 2013 Russia has recognized and unified the titles from the USSR era. Fenerbahce, on the other hand, is fighting with the Turkish federation for recognition of titles they won before 1959 when the Turkish Super League as we know it today was established.
England doesn't have any set rules and the vast majority of clubs don't care for commemorative stars. Aside from Nottingham Forest and Aston Villa mentioned in part 7 of this series, Manchester City's old crest had 3 golden stars over it but were purely decorative.
African national teams have 1 star over their crest for every African Cup of Nations trophy they've lifted. These stars only appear on their jersey during friendly or AFC matches. Egypt requested FIFA to play the 2018 World Cup with their 7 AFCON stars but the request was denied.
Lastly, I wanted to mention the odd case of El Nacional from Ecuador. The club has golden stars over it's crest representing national titles, but it also has silver stars under it's crest to represent every time the club finished 2nd in the local league.