Taking into account latest round of feedback (as well as the realisation and understanding that the smaller we went for incoming merchants - the more options and cleaner look we had to give because our current stuff when shrunk looked atrocious). The coin at these sizes basically becomes has to be a simple circle as you say. We will come up with something soon regarding the coin and circle/noble graphics. However, in the meantime we're looking for some feedback and ideas regarding:
http://www.noblemovement.com/downloads/noblecoin-accepted.pngSpecial thanks to a3tje for jumping on us to get this sorted so far.

edit: We'll also get some feedback on a3tje's stuff!
Those are exactly what I want. It's very proffessional looking. Simple and elegant, yet very easy to distinguish. Anyone involved in the community wouldn't have to think twice about what that is. Nice job. I honestly don't think a coin is required at all there, but for times where a coin would be meaningful, we have one that looks great already. I don't understand why everyone want's to change it
