An answer? Ack! I'm gettn' rusty at this.. What about this one?
We are tiny creatures,
Each having unique features,
One of us set in glass,
One more you'll find in jet,
another of us you will see in tin,
And a another still set in perfect stone,
The fith of us is the one you should pursue,
it can never fly away from you...
...What are we?
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