>>6058290I figured. If you did want to make things look airborne without shopping the picture, you could run a well-anchored metal rod through a pinhole in your backdrop with an alligator clip (or something similar) at the end. That's how toy catalogs did it back in the day.
This shot was just a long Lego Technic rod stuck through a hole in the backdrop with sticky-tack at the end, but if you were taking your time setting up the shot you could obviously do a lot better than this.