A couple of days ago, this collar arrived anonymously from the UK, but given the style of it, the roller skate charm and the attached tag, I figured it out immediately. It's blue leatherette with some silver worked in (slightly obscured by my lighting).

It's a gift from my dear friend Amanika, not designed with any character in mind but just to make me feel better after a particularly crappy month that included being forced to cancel my trip to London (where we would have met, hence the tag). Definitely one of the nicest things anyone's ever done for me.