I opened a new container of round toothpicks and liked the design they made. And so, I put my 36mm extension tube on my 24-105 mm lens, placed them on the table to be side lighted by the evening sun and got in close.
I spent a minute looking at this trying to figure put what it was before I read your description! I did not guess toothpicks! Ypu make toothpicks look good!