Boys love explosions!
Give them the chance to blow up a fairly average bungalow (you know the sort, the sort of little house your grandparents have always lived in...) with Light The Fuse!
Each time they behave well (or badly, it works along the same lines as Panda Candy) they can come to the IWB and press or click and light the fuse. Each lighting of the fuse will only burn it for a few seconds, so they will have to relight it. When it, finally, gets to the end of the final length of fuse, the bungalow will explode!!
