#1
I took my Eastman T-184 out of the case to find this:

http://imgur.com/nI36xWx

The spring is rolling around in the guitar. I can see it, and can get it, so that isn't a major concern, but how do I fix this?
#2
Easy. Take the strings off, then unscrew the 4 screws at the corners of the pickup ring, lift the pickup and ring off the guitar, retrieve the spring, then put it where it belongs and put it all back together.
Various Strats
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Quilter 101 Reverb and Mini
1958 National lap steel
Eastman El Rey 1
#3
unscrew the pickup ring and get the spring out.
then put it back together so it looks like this
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