I think I've got a Kong one (Red; LH?) which I no longer need (as I invested in 2No. sets of Ascensions in 2013 for our 'Honeymoon').
I can dig it out tonight if it's of interest (it's not the most comfortable thing to use for long periods of time)? Send me a message on FB if so.
Have to say that I love the combination of Micro-traxion and Gri-Gri for anything climbing/photo related (and it's easy to have in the bag at all times, given the gri-gri is in there already).