Certainly we've handled a lot of toned coins of all kinds, from all eras, and in a w--i--d--e variety of colors, but we have to say we can't recall having one in this electric shade of chartreuse green.
And so of course we needed to highlight that fact with a standard, attention-grabbing and, we hope, memorable chatreuse-loose rhyme.
Captions that didn't make the cut:
There were none.
We knew we were going with this caption the moment we saw this coin at the LB show.