Hi Sketchbookers, Diana here. I love a good resist. It may be my inner rebel! Here is a YouTube video from awhile back using watercolors and one of my favorite resists: Sakura Glaze and Souffle pens. Use the clear or white pens (or other light, bright color) for the biggest pop! Draw slowly with the pens so you deposit a good bit of the ink. I love crayon resists as well. You know how to do them, right? Of course! Well, if not ... you can find out.
Geek Alert PS : that blog title is from Star Trek, the next generation when the Borg are taking over the Federation. EEEK!