idea is to use scrap material (card board, sellotape, etc) to build a
structure which will protect a water balloon when thrown into the air.
The children win scrap through a series of competitive games. The
ultimate prize is that any balloons which survive will be smashed over
the instructor's head. Motivation indeed!
P.S. Any trace of tiredness which children were showing 20 minutes ago
has well and truly left the building! Perhaps cocoa at 9 will restore
it...?
