DD (13) loves flags. She is fascinated by their history, their design and so on.
She has a Seychelles flag above her bed (her favourite flag). She has bunting of all the works flags. I have a Stars & Stripes left over from a Cub event (not on display!).
A friend of ours has a huge collection of flags from around the world and flies them ar relevant times eg; Canadian flag on Canada Day etc. He is quite well known in his city - international students come a see their home flags flying in his garden.
I have small Yorkshire Rose pennant too.