I've been watching the free classes that Stratmore provides. I watch all of them and learn even things I won't use but that are good to know. This one by the Journal Junkies is fun, so I had to try some of the things they were doing.
Above is a paper painted with watercolor that has had drops of rubbing alcohol drops on it.
This one is my favorite. It is watercolor again with rock salt dropped on it while it was wet.
Finally, the watercolored paper has a finer salt from Jacquard.