I wear a lot of paisley shirts, so I get them from Goodwill and the Salvation Army, usually. I've been on the hunt for a pair of roller skates, but size 12 isn't very popular.
I did get an acoustic guitar the last time I was at Goodwill. There was a massive electric organ there, too, and it was only $20. I'm gonna see if I can get my mum to lend me her van so I can transport the damn thing, providing it's still there.