The colourful flags of Pakistani nations
Wikipedia is an excellent place to find interesting things. It has a section on flags of ‘non-sovereign nations’. Most of them appear to have employed overly creative designers.
L-R, Row 1: Balawaristan (Gilgit & Baltistan), Hunza (both part of the erstwhile princely state of Jammu & Kashmir) and Balochistan
Row 2: Pakhtunistan and Waziristan Source: Wikipedia