Step 2: Pick your poison (or coins)

Some coins are more equal than others: Wear & tear will factor in on which coins you use. I am using nickels and pennies in the sleeve, and a quarter on the cap. New nickels provided an overly snug fit in the sleeves, but slightly worn nickels worked very well. Pick an older, worn looking nickel. Try a few out. As much as I'd like to put holes through the ugly new nickels, it's more effective to use an old one. Monticello on the reverse will also help you drill centered holes!
Pennies tend to wear noticeably thin at the edges, so newer pennies will be more even. Pick newer, shinier pennies. The Lincoln Memorial will help center holes.
Quarters with an eagle on the reverse makes centering holes easier.

In short: pick coins with symmetrical images on at least one side.
Pick worn nickels.
Pick mint pennies.
@m1sterb0b<br/>its only illegal to deface currency if your intent is to defraud the government or others with the currency (ie pounding nickels into quarter sized slugs for the arcade machines) <br/>Make magazine confronted this just a short while ago <a rel="nofollow" href="http://cachefly.oreilly.com/make/halfdollarringcomic.pdf">Make: pdf</a> (see page 6)<br/>
thank you for that information. You brought that to my attention in a much nicer way than someone else did on a different section. I'll make sure to bookmark that link. I was always under the impression that it was illegal to deface coins or other currency unless in protest. not quite sure where I got the penny thing from either way. Anyways, Thank you.
Even though its illegal to deface any American currency greater than the penny, interesting concept.
Which law makes it legal to deface the penny?
&quot;Deface an American currency greater than the penny&quot; meaning, not including the penny. Im not sure when it was made legal to deface the penny but you can. All greater currencies are illegal to deface.<br/><br/>Section 331 of Title 18 of the United States code shows that its illegal.<br/><a rel="nofollow" href="http://www.usmint.gov/consumer/18USC331.cfm?flash=yes">http://www.usmint.gov/consumer/18USC331.cfm?flash=yes</a><br/><br/>again, im not sure where it says that its legal to deface the penny but IM pretty sure it is legal. (ill keep trying to find out)<br/>
Good use of readily available materials. Don't dip it in salt water or you might get electrocuted. ( <a href="http://www.instructables.com/id/E5227V5K1QEZBF8OQH/">http://www.instructables.com/id/E5227V5K1QEZBF8OQH/</a> )<br/>

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