If you've still got your T-shirts from the 80s/90s (using one to clean the car perhaps), you might be sitting on a gold mine. Nirvana are the 1016 gilt dial of the T-shirt world, but Guns'n'Roses and even My Bloody Valentine fetch eye-watering prices. Apparently English indie bands - Spacemen 3 and Slowdrive for example, are highly sought after in Japan.
Wanna know how much? Look at the prices of these completed listings. Then check the bottom of the wardrobe. And keep your eyes open at the charity shop.
https://www.ebay.co.uk/sch/i.html?_n...plete=1&_pgn=1