Here's a couple of mine:
Schwinn Prologue
Before, this thing had sat for a long time. Most of the grease was hard, gummed up, etc.
After, major degreasing, aero bars, riser stem, crimped handlebars gone, saddle replaced, etc.
Greg LeMond Maillot Jaune
Before, pretty mint but those tires.....
After, New tires and white saddle, bar tape, bottle cages, cable housing, etc.
Greg LeMond Ventoux
Before, not bad but nothing special and some mismatched parts. The Bontrager crank was not compatible with the Dura Ace BB and wobbled. Oh and 700 x 19c tires

that were replaced before I grabbed this shot.
After, Ultegra crank, new wheels and tires, Brooks saddle and new seat post, wider bars and cushy bar tape.