You should be careful with this. The US Congress is currently investigating unregulated cryptocurrencies and slowly but surely pushing new ones toward being properly regulated under Title IV. So this means cryptos that aren't Regulation A+ will either have to take the new, legal route of becoming regulated and open up to all investors at low prices (instead of a select few, accredited investors at high prices) or risk getting shut down (yes, this includes Bitcoin, Ethereum, and many of the other popular ones, all of which were created before).
http://www.washingtonexaminer.com/its-time-for-congress-to-consider-new-cryptocu...
That said, Quarters is an awesome idea, but I'd hate to see it get shut down because of incoming regulations. I'm up on the news, just not up on the tech, so I can't make any claims about any adjustments you might need to make, but just a heads-up.