Progress of a New Idea

Whenever I have a new idea for a product, there is a long road that takes the idea from my head to a sellable product. Today I'm going to share the many "rejects" that lead up to a new embroidery design I've developed. These steps don't include whatever final product into which the embroidery is incorporated, but I thought you might like to see the many versions (and many hours of sewing) that went into my design process.

TOO BIG. This is not a realistic scale for me to put on a zippered pouch or knitting needle case. Plus, I need to be working with a linen fabric. This substrate was really difficult to pierce with the embroidery needle (making for ouchy fingers).
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The needle is still far too large.
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The scale is better, but I think I need to go more 1-dimension with the knitting needle, not 2-D.
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I like the needles! But now I don't like the unevenness of the stitch gauge. The stitches need to be evenly spaced from top to bottom. Though, I do think this one is adorable in its wonkiness.
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The stitch gauge works! The needles work! I even like the juxtaposition of the needles to one another. But the needles need to be the same size (doh!). And, I'm not keen on the stitches "wrapped" around the needle.
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Ahhhhhh, this looks just about right. But, those stitches at the bottom aren't accurate. They bug me and look unfinished. One more adjustment...
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Finally! I'm satisfied with this version. Now, quick--write down exactly how I did it do I don't forget a month from now. And, hurry up and make a bunch of them whenever I'm waiting for kid activities to see how long one takes (to try to attach a fair wage labor price to the handwork. Emphasis on try).
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Now I'm ready to turn these into actual products. What to make?? I have some ideas, but would love to hear from you in the comments!