Jerry Lee Lewis's 1959 FLH Duo-GlideThe 1959 Harley-Davidson FLH Duo-Glide is a decent bike in its own right. It has a big four-stroke V2 engine of 1,212cc and can power up to 55 horsepower. The handling is a bit mediocre, but the FLH is by no means the worst Harley ever made. The bike fetches anywhere between $14,000 and $35,000 depending on its condition, which is still expensive, but Jerry Lee Lewis's specific FLH qualifies as a "small fortune Harley."H-D gifted two of these bikes in 1959 — one to Jerry Lee Lewis and the other to Elvis Presley. In fact, this motorcycle even became part of Lewis's rivalry with Elvis Presley. Besides the rarity, the bike also holds value based on how good its condition is. The bike was shown meticulous care; it has a low mileage (only 2,257 miles on the odometer) and was continuously owned by Lewis. This kind of historical and emotional value catapulted its auction price to $385,000. It's not too far-fetched to assume that if Elvis Presley's FLH gets auctioned, it will reach Harley-Davidson's pantheon of million-dollar bikes.Unlike the Comic Starship, the bike itself is not even modified cosmetically. The design still has a black-and-white color scheme, a tall windscreen, white leather seating, and chrome accents. The mechanical aspects of the bike also remained, including its suspension system—moving away from the traditional hardtail design, it introduced a rear suspension—trivial now, but a big deal back then.Harley-Davidson Bucherer Blue EditionThe Harley-Davidson Bucherer Blue Edition is a project by a Switzerland-based workshop Bündnerbike in collaboration with the luxury jeweler Carl F. Bucherer, and the team spent over 2,500 hours in creating this bike, with each component meticulously handcrafted, welded, and polished. The chassis literally sparkles with diamonds, and even the screws are gold-plated. They even painted it a special kind of blue that looks different from every angle. It seems that this was achieved through a secret process involving six layers of paint over silver plating and is a trademark of Bucherer.The Blue Edition is based on the 2017 Softail Slim S, but it underwent so many transformations no Softail was left to be recognized by the time it was done. Still, a Harley is a Harley — it has a powerful 1.8-liter V-twin engine, producing 92 horsepower and 148 NM of torque, paired with a six-speed transmission.The level of luxury on this bike reaches some ridiculous excesses. For example, the bike comes with onboard safes containing a Bucherer watch and a 5.4-carat diamond ring and a watch holder that doubles as a winder. The handlebars are diamond-encrusted, and the seats are hand-sewn in Switzerland using cowhide. You can technically ride this Harley, but it's so fancy and expensive that it's more likely to be kept as a showpiece. Total worth? $1.9 million. Small fortune indeed.