fc3dedfd_Fireside_Girls___Disney_Wiki__Notes
[Episode] "That Sinking Feeling" [Patches] Shrimp Net Repair Patch [Notes] 
Earned by repairing shrimp nets at the harbor, but this is never seen in the episode. Isabella mentions this to Phineas while he is on the boat at the harbor, and is with her whole troop, so all the girls earned it.
Fireside Girls - Disney Wiki
Notes