What is this thing?
 

Can anyone tell me if this is a part from one of my [ATTACH=CONFIG]416984[/ATTACH]sewing machines? I have taken so many apart and apparently there are a few leftovers.

Looks like a type of spring pin. Like in a magnetic clip or one of those clips that hold bags closed.

It might be part of the bobbin winder. When the bobbin is full, it pops the bobbin away from the wheel. I replaced the rubber ring and messed mine up. I remember a part like that when it took it apart.

looks like the thread holder on the top of my machine-

might it be a spring from scissors that auto open?

I don't have a clue. I would save it, you may discover it is something you will need.

It actually looks like the spring that sits inside a plastic peg.

...or the spring from your upper tension knob?

Often in the manual, there will be a list of parts- maybe you could find it there.

Thanks for your replies and suggestions. It may be from my Morse bobbin winder which I took apart to clean last year and still can't figure out how to put it back together. Grrrrr!!!

The spring on a curling iron is exactly like that spring.

It looks to me like the spring that has broken on several of my curling irons!

It is a spring of some sort. Now where it came from??? Same shape as the one that popped out of my paper punch, but doesn't look as big as that one.

If you have a good service guy, he would be able to tell you

Your posting made me smile as it reminded me of the classic cartoon of a handyman husband taking apart something to fix it and getting it back together and having an assortment of parts that didn't make it back into the thing.
;)

Well, I am the wife who takes things apart and has all these leftovers. Here is a picture of some of them. Any suggestions would be appreciated.[ATTACH=CONFIG]417414[/ATTACH]

Kitsy...it looks to me like it's a spring that goes inside of a clamp, like a clip on lamp, or something similar.
I know it won't help you now with your bobbin winder, but in the future take pics of your projects as you're taking them apart, that way if you get lost, you can look at the pics and see how it goes back together!
Also..use masking tape to tape the screws to the hole they go in, so when it's time, you don't have to guess which scew gows where.