Weathered Wood Technique by Betsy Veldman. Use a foam brush to brush on some blue (or whatever color you'd like) acrylic paint on kraft cardstock. Leave some areas unpainted. Let dry completely (can use heat gun). Brush over it with white acrylic. Let dry completely. Dry emboss in woodgrain embossing folder. Then use Copic Colorless Blender from refill bottle. Squirt a bit onto paper towl and rub over painted /embossed cardstock until you get the look you want.