What bikes have you used as parts donors? I've gotten 27" alloy wheels, pedals , alloy handlebars,and bottom brackets from 80's, step-through frame Schwinn Travelers and World Sports I got for $10 at thrift stores.

I recently cannibalized a Japanese Bianchi Strada I'd upgraded to get parts for a Lotus build-up. I felt bad about de-commissioning the spunky Bianchi and will be watching out for suitable parts to get it back into the rider fleet.