made my own stamp by using a blade to cut lines into a small craft foam cube (like making a wood cut).
Stamped with Roan chalk ink & over-colored with crayons before burnishing to blend...
Ah-h when I first saw the photo I thought you have woven pieces of palms for Easter...something we always did on Palm Sunday as a young girl. I really like the look you achieved. You will be able to create several patterns with your new stamp!