Slackrope
Similar to tightrope, slackrope requires some degree of balance, leg strength, and most of all, lots of practice, and can be combined with other skills like juggling or unicycle for amazing effects. Whereas tightrope requires a primarily stable balance, with only vibrations or springiness in the rope, slackrope depends upon a moving balance, countering or amplifying the natural sway of the rope. A skilled performer may control the rope's motion to produce anything from a full swing to virtual stillness.
Click on one of the thumbnails below to see a larger, clearer version of the image.