Step 4: And...?
Well, yes. Nearly too well.
There were about ten children at the party, and they all had three goes each, ending up taking ten whacks each at a time.
Eventually, the string ripped out of the top, and the kids eviscerated it on the floor.
Basically, a happy half hour was had by all.
(The photos are a bit ropey, mainly because I was rather drunk by this point)