I'm not sure the existence of the sign on one other coin should be a determining factor if we're having a moose on the other side which has been used on several coins.
However, we could replace the sign with a tree and have the moose hiding behind that. But I'm not sure how we'd place the GC codes on the other side - having them carved into the tree does not depict geocaching well in my opinion.
DNFTT! DNFTT! DNFTT!
"The funniest thing about this particular signature is that by the time you realize it doesn't say anything it's to late to stop reading it..."