Here is my '77 Yamaha XS750 "RaTriple". It is mostly stock, except for a Mac exhaust with a $19 RedHots glasspack car muffler painted with BBQ paint (someone stole my original muffler work one day, this sounds better anyway), some cheapo pod air filters, crankcase breather from a '78, and an electronic ignition system from another '78 hacked together with bits of wire.
It was in pretty good shape cosmetically when I originally got it in 2000 from a friend of mine (the original owner) for $1 after it sat in his shed for almost 10 years. It's current look comes naturally, from a combination of being left outside uncovered for several years, oil leaks, lack of washing, and year-round riding for a while.

Brian
Massachusetts, USA