Don't over-complicate things unless you have lots of spare time on your hands...
You can get foam sheets in different thickness from the craft store and cut them to shape with scissors or a razor. Even glue together sheets for multi-color. Lash them to an aberdeen hook (for panfish) then a drop or 2 of super glue and you are good. Targeting bass, you might want to upgrade the hook.
You can get the specific kink shank hooks and foam bodies from fly shops - just expect to spend about 3X the cash.
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