I tried painting yesterday's Liquid Leaf on paper to see what would happen. It creates a lovely metallic lustre.
Liquid Leaf does soak through paper a bit, though. I tried spraying a sheet with a quick coat of clear acrylic sealer first to see if that would help, but it didn't change much. Still, it's no problem if you want to paint some prints for framing or paste the gold-painted paper onto something else.