One long rope and a group of children is all you need.
Jumpers form one line to enter the rope near one of the turners.
The first jumper enters the rope, jumps once, and exits on the diagonal going around the turner to form a new line.
As the first jumper is exiting the rope, the next jumper in line must enter and jump the rope once, in a follow-the-leader fashion, taking her place behind the leader.
This continues until all of the jumpers are in the new line.
As the last jumper is exiting the rope, the leader must enter the rope and repeat the process making a figure 8.
The idea is to follow the leader without missing. Jumpers are eliminated each time they miss until there is only one left jumping.