Misplaced Mechanized Motorized Marvels in the Multiverse

The six members of the Crime Champions wielded wonderous weapons against their arch-foes of the Justice League and Justice Society. Three of these supervillains originated on Earth-One, and the other three resided on Earth-Two. Among their number, two of these felons possessed mechanized marvels which they employed in various capers throughout the years.

Chronos designed his Flying Sundial, a gigantic hover craft with a protective dome allowing him to traverse various environments. Aboard this vessel, he carried numerous time-themed gadgets along with smokescreens allowing him to travel undetected.

Fiddler designed the Fiddle Car, a custom-made automobile in the shape of a gigantic fiddle on wheels affording him high-speed travel across various terrains. Within this vehicle, he carried numerous music-themed gadgets along with exhaust pipes emitting thick smoke cover.

During the Crime Champions' inaugural case, Chronos brought his Flying Sundial to Earth-Two when he faced members of the Justice League*. Years later, following his Injustice Society's latest defeat, Fiddler brought his Fiddle Car to Earth-One when he faced the Teen Titans. While both villains were captured by their opponents and returned to their native Earths, their vehicles were left behind. Apparently, Chronos and Fiddler had either rebuilt the Flying Sundial and Fiddler Car, or had already possessed a second set of these vehicles back on their own Earths. 

Hence, Earths One and Two each had a Flying Sundial and Fiddle Car, although those motorized marvels left behind evidently ended up collecting dust from disuse as their former owners left them behind.

* Interestingly, during this same adventure, the Batman and Wonder Woman of Earth-One were seen on piloting a Batplane and Invisible Plane on Earth-Two when they battled Doctor Alchemy of the Crime Champions. Alchemy transformed these planes into winged horses in an attempt to throw the Justice Leaguers to their death. Although this scheme was unsuccessful, it was not shown what became of these transformed horses. Did they stay in those forms or revert to their motorized versions? 

It seems likely that, in fact, these were solidified energy constructs created by Doctor Fate when he brought the Leaguers to Earth-Two, using his atomic restructuring powers (since there is no record of either hero/heroine meeting his/her counterpart on this occasion and borrowing their vehicles for this adventure). These planes allowed Wonder Woman and Batman to reach their destination.