Dave takes the idea of an "inverse" trick (holding the "other bit" of the kendama, whilst doing the same sequence) and came up with this doozy:
inverse around the cosmos (properly this time) - juggling videos hosted @ Juggling.tv (http://juggling.tv/6670#id=http://juggling.tv/nuevo/econfig.php?key=d41445904d071ba37aaf)
Talked about here: http://www.kendama.co.uk/forum/index.php/topic,52.msg920.html#msg920 (http://www.kendama.co.uk/forum/index.php/topic,52.msg920.html#msg920)
Amazing work! Congrats