Originally Posted by shequilts
It takes some doing, but here's what I did.
Locate the buried head and using another straight pin, directly over the offending pinhead, separate the "threads
until you can pop the pin up and out. If it is under the batting, approach from the back side. Patience is what it takes.
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That's exactly what I was going to suggest. I do that every now and then, which is why I try to use the largest headed pins I can find.