More to explore:
Vegetable Print Rose Stationery Valentine Card from Martha Stewart ..... Easy Valentine's Ideas for Kids (or the Crafting Clueless)
Party projects + Craft Party shout-out
Here, the end of a head of Treviso radicchio yields a roselike print. Cut off stem end with a sharp knife, and stand stem on a paper towel, cut-side down, for 5 minutes to dry. Press cut side onto a large stamp pad, then onto cards, stationery, and more, blotting on paper towel between presses. Vary stamp shapes with other vegetables, such as romaine lettuce stems or even brussels sprouts cut in half.