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EDITED TO ADD: I used my industrial machine for the bag and then decided to try the Bernina 440 with a walking foot for the straps. It sewed through those layers of PVC as if they were butter. I could have sewn the whole bag with the Bernina.
The lining fabric was bought from the Theme From Jak garage sale.
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Stay tuned, folks! There are more variations on other themes in the works as we speak.