Shop › The Blue Heron - Data Card Image 1 of 1 The Blue Heron - Data Card $40.00 Acrylic marker on data cards by Valerie Campbell. Each 3”x7” data card is a completely original illustration. Add To Cart Added! Acrylic marker on data cards by Valerie Campbell. Each 3”x7” data card is a completely original illustration. You Might Also Like Quick View "We don't actually have a leader." | Gen 2 by John Cabrera $150.00 Quick View Penguin with a Bow Tie - Data Card $40.00 Quick View Happy Little Bee - Data Card $40.00 Quick View The Angry Little Blue Bird - Data Card $40.00 Quick View Oy with the Poodle - Data Card $40.00