Dihydrogen Monoxide Warning Sticker
An oldie but goodie prank for coworkers heading towards the water cooler, or fun deterrent for kids who haven't seen it yet, and keep drinking all your OJ and sodie, the Dihydrogen Monoxide Warning Sticker comes in 3" x 5" and make-damn-sure-they-see-the-joke 4.5" x 7.5" sizes. You can also choose from a white or a clear background.
Oh, and in case you aren't really sure what dihydrogen monoxide is, you can learn more about it, its implications, and its dangers from the Dihydrogen Monoxide Research Division at DHMO.org.
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