$1911

I want to make a keychain thats the panama flag for my boyfriend. I was wondering if anyone could help me figure it out to where i dont have to use a million strings. i found a star pattern that uses like 22 strings
http://mzocho.ovh.org/bransoletki.php?dzial=gwiazdki&typ=gwia
number 12.
but the panama flag has 4 sections with a solid blue square with a blue star in a white square then a red square with a red star in a white square under it.
if you can help thanks.