They pulled the trigger so you can push the pin. This set of 8 Bullet Casing Push Pins come to you and your cork board from real, once-fired, American-made 9mm bullets. Seller Lucky Shot promises the conversion of the casings to thumbtacks has rendered them completely safe for all to use. At least in the sense that they contain no live primers or gun powder. Stick one in your eye or swallow it down with some chocolate milk, and you'll probably find that even out of commission these bullets become real unsafe real quick.
9mm Bullet Casing Push Pins
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$159.99 - $189.99 from SKYtech Lasers »
If you're on a laser hunt but "just looking for something cheap that'll burn out after a couple months," SKYtech will have to point you in a different direction. Maybe using TO-38 diodes and a 1,000mW indigo blue beam....