10 TO 12 INCH TREE CONKS: This sample of 10 to 12 inch tree conks is designed for those who need just a few Tree Conks for a specific design. Or for those who would like to see what a Tree Conk looks like before they order more. Tree conks have textured tops and smooth white bottoms. They grow on the sides of dead trees and can add a very woodsy look to your floral designs. They are packed dry and can be kept indefinitely if kept away from moisture.