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Message: <blockquote data-quote="Channel Hopper" data-source="post: 898659" data-attributes="member: 175144">It looks very much like the laser that used to power the children's (well adolescent sprog's ) wall animation pens of a decade ago. The end cap could be removed to put in various diffraction gratings, usually in mood styles - hearts/thumbs up/two fingers etc.I paid about a fiver for one a few years back, and used it on the air rifle as a quick sighting aid. The batteries cost more than the pointer did.</blockquote>