well, the International Buskers Festival is on right now in Christchurch. I've seen a few acts so far. A contortionist, and woman rolling in a hamster wheel (she was quite good, entering and exiting the wheel while it was rolling), and a yo-yo exhibitionist. Here are some pictures of the yo-yo guy (and one of the yo-yo girl).
The first is of the yo-yo guy with a "looong" yo-yo.
And one of their finale, with both yo-yo guy and gal.