Today I took my daughter's Monster High Sweet 1600 Draculaura Roadster out for a shoot. If you squint and then get really drunk and then pass out or die, it's passable as a wildly stylized take on one of the Neutrino flying cars:
To suggest the car is floating, I simply balanced it on this barrel accessory:
If and when my daughter finalizes her long, drawn-out process of outgrowing Monster High, I might conduct some painting and weathering experiments on it to make it more viable.