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The link above points to a "gizmo". It is your job to figure out exactly what the picture is of. Unless the gizmo host has given specific criteria for solving the quiz, a name and/or detailed description of what the gizmo is/does is sufficient. An answer which includes a link to the page where the image in question was retrieved from also constitutes a correct answer.
The winner of the quiz will host next week's quiz (if able and willing to). The quiz must be hosted on the following Saturday. "Saturday" is defined as "a time during which it is Saturday somewhere in the world".
<hint, hint> ;)
How small? About half an inch to an inch (~ 1-2 cm) long.
Multiple colors? Yes, in fact, it _does_ come in different colors; although the various colors are not at all as common as the plain metal one. This image [datafeed.wildcatsoftware.net] shows a few examples of the colors. However, in real life I have never seen anything other than the plain metal.
[edited by: DrDoc at 7:46 pm (utc) on Dec. 30, 2006]