Does anyone have any ideas for crazy things that I can do?

Me and my friend are having two weeks of random craziness where we complete as many crazy tasks as possible, but we can't think of many ideas...so far we have: Dressing in winter clothes on a really hot day and acting as if it is really cold, bursting into song in the middle of a shopping centre as if it is a musical, creating our own religion with customs relating to The Mighty Boosh and a few more. Does anybody have any better ideas? :D