I've been salvaging parts off of old pcb's and was wondering what these three things are, it may be a dumb question 
thanks!
Please reply here as I don't check flickr that much 
edit: oops! forgot the link:
Those were absolutely not what I thought they were. wow, thank you very much!
Just for the record and to provide a bit of incite into a beginners mind (it's been a long time since I was a beginner) what did you think they were?
Well, I wanted one of them to be a relay of some sort, so I knew that 3 wasn't it, because it's only got 2 leads. #1 has some sort of coil inside, so I was wondering if that was an electromagnetic coil for a relay, but I guess not. 
I was mostly curious as to what they are because I've got a ton of them on a radio-controlled plane board that I'm scrapping, and was wondering if I could put them to use. I can't think of anything involving them now, but as soon as I throw them away I'll wish I had them, so I'd better hang onto em. :