Hot answers tagged piece-information
Those appear to be Bionicle figures, a theme that was active from 2001 to 2009 (and making a comeback in 2015, I hear). The line focused on buildable "action figures" (aka "constraction figures"). See here: http://brickset.com/sets/theme-Bionicle
This would be a Crane Bucket - Complete Assembly (Top, Jaws, Spring). It could have come from any of 29 sets from 1974 to 2012.
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