Liberland is one of the most appealing initiatives the cryptocurrency world has ever seen. Up until this point, the country would accept fiat currency payments and cryptocurrency transfers alike. As it turns out, dealing with fiat currency and banks remains a key problem for innovative projects. As of yesterday, the country only dealing with cryptocurrency, primarily in Bitcoin. But that does not mean other currencies will not make an impact in the future.
http://thedashtimes.com/2016/09/20/liberland-goes-bitcoin-cryptocurrency/