"Going down a slip and slide on an inflatable crocodile, armed with a litter picker, picking up as many potatoes as possible."

After all the games they are having a "Ready-Steady-Cock" which is like Ready Steady Cook only making cocktails using given ingredients.
Anyway, I digress. In order to make the scores more even, they are going to be given "challenges" to do, which is where I come in. They are able to text me and be sent a challenge which they have to complete without anyone noticing. The example he gave was e.g. "Compliment someone on their shins," or "Get the word "spandex" into a sentence."
So, I need some ideas! Anyone got anything?
