As i heard that....Asgardia is going to gets its nationality in un like every other country...So like every realistic Country do u all dont think that we should have our own currency nd way to earning 

Since Asgardia is not a Nation, and never can be due to UN Treaty... May I suggest pocket lint?

http://www.unoosa.org/oosa/en/ourwork/spacelaw/treaties/outerspacetreaty.html

Article II

"Outer space, including the moon and  other celestial bodies, is not subject to national appropriation by  claim of sovereignty, by means of use or occupation, or by any other  means."