Saw this on a video on Stampin Connection (website for Demonstrators only), and just had to try it.  It is done with our refills, water spritzers, and the round Mr Coffee type filter.  It was so much fun to see the colors blend.  Let me know if you want a class on this technique.

Supplies:  Stamp Set; Perfect Punches 120516.  Paper; Very Vanilla 100730, Daffodil Delight 119683, Coordinations card stock 127846, More Mustard 100946, Pumpkin Pie 105117, Riding Hood Red 111348.  Inks; Cajun Craze 126965, More Mustard 126964, Early Expresso 126974.  Embellishments; Big Shot 113439, Lacy Brocade EF 127819, Scallop oval punch 119856, Natural Designer Buttons 127554, Dimensionals 104430, Linen Thread 104199.