OK, my entry:
A simple set. The War Ensign and Naval Ensign of the Grand Duchy of Lemuria (a mixed Euro-African-Malagasy constitutional monarchy located in the southern half of Madagascar and the Mascarene Islands).
Both the war ensign and naval ensign share the same common basis, but have different iconography. Besides the two crossed flintlock muskets, the centre (green) field of the war ensign also includes the (demonstratably chipped and battered) blade of a traditional Madagascar polearm (it's a simple halberd of sorts).
More info on the country is available
here and more info on its national flag and ducal standard can be seen
here and
here. (The flag and standard are of course not entries for this round, I'm adding links to them just in case anyone would be interested in them.)