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<p>[QUOTE=&quot;krispy, post: 674985, member: 19065&quot;]Ideas that come to mind but for which I have no idea what results will occur:</p><p><br /></p><p>• <b>rotobeast </b>mentioned slow heat baking with various ingredients <a href="http://www.cointalk.com/t31731-2/#post311014" class="internalLink ProxyLink" data-proxy-href="http://www.cointalk.com/t31731-2/#post311014">here</a></p><p><br /></p><p>• <b><span style="color: DarkRed">Blowtorch</span></b> (also try this after coating the coin with other things that will burn off and leave an altered surface: grease, motor oil, petroleum jelly, peroxide, the fun stuff you should mess with outdoors or see done on MythBusters that they say not to do at home. ^_^</p><p>&nbsp;</p><p>• Try radical temperature shock: heat up slowly then dip in ice cold water... (use tongs to transfer the hot coin to the bucket of water, and be careful.)</p><p><br /></p><p>• Maybe a (toxic) chemical like cobalt that&#039;s used to treat gun metal as a heat barrier or something like anthracite powder (hard coal) that is used for powder coatings of metals.[/QUOTE]</p><p><br /></p>

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