Mention of Tartan Day in another thread sent me Googling for info on local events. In the process I ran across the San Diego Tartan Day tartan, registered earlier this month (registry page). The group says they "will seek approval from the city and county of San Diego to achieve designation as a “district” Tartan for all San Diegans."

My first thought is "reminiscent of Leatherneck" but that's not a bad thing. The list of "colors symbolizing. . ." is so extensive as to be overwhelming, and makes me think both "trying too hard" and "designed by committee." Overall, though, it's pleasing to my eye and might be fun to work out a "flashing" pleated version with that red/gold stripe.