I used three pine boards for the base and two thinner ones for the side slats. The side slats are nailed on with tacks. I purposely did not predrill, and that created some cracks where the tacks went in.
The graphic came from The Graphics Fairy where Karen shares hundreds of free images. It had a white background on which I dabbed on some rusty water (steel wool and vinegar) with a paint brush. The image was cut where the boards meet and then put on with Mod Podge glue.
I drilled two holes in the top for my twisted twine hanger which I showed how to make in a previous post here
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