I don't have any positions, but one night when my ex and I were playing around. I was looking for some sort of tickling device, with no luck... Then I had an inspiration. My parents had a gold painted metal model of a crane in their living room, with a long beak. I figured, I didn't want to use the fingers so, why not.
My ex couldn't stop laughing. I kept at it for a good 15 minutes but ended when she muttered something about wet... I've been wanting to be tied in, or tie someone in the lotus position and tickle or be tickled in that. If you see the clip, in the clips section, it is pretty sweet.