Look in the comments

Kuwait flag (requested)

Someone's PFP (requested)

Cologne

I know it looks bad

Saturn

Acre

El salvador

I got lazy with the animations but here is sealand

Canada

Morgoth

Santiago (he did not specify which flag so I did this one)

Litoral flag (got lazy and did this)

Flag proposal

Banana, Kiribati

There's no subdivisions so this will do