In Guardians of the Galaxy, Vol. 2,
Yondu has at least 3 fins, including the one that Nebula shot off, the prototype with which he was cremated, and the one that was given to Kraglin after Yondu died. If these three existed, no doubt Yondu also had others.
Where did Yondu get his fins? And why didn't other crew members steal them?