If you're on PS4 and you've got 3,500 VC to burn, Arcane's custom NLSC t-shirt received 100 votes, and is now available at the kiosk!
While I'm throwing out cheap plugs, there's also some real NLSC merch available through Arcane's label here. But in any event, if you want to rep the NLSC in-game, search dragon4thq in the store, and you'll find it.