For sheer straight-up bizarreness, nothing beats the catalogs from McGee Radio in Kansas City. Printed on paper that made newsprint weep, the McGee catalog was notable for having the strangest whatever "stuff" between its (usually torn) covers. Amps from consoles, weird coils, one-of-a-kind speakers, and some stuff you just couldn't tell what the hell it was (or who on earth would buy it). The arrival of a new McGee catalog was as big an event to me as the new Mad Magazine showing up at the drugstore.
Now that I'd like to see online!
Happy trails,
Larry B.