In his introduction to the science shows feature in "Primary Science" 115, Ian B. Dunne asks the question "Why have science shows?" He lists a host of very sound reasons, starting with because "science is fun" so why not engage and entertain, inspire, grab attention and encourage them to learn? He goes onto to state that: "Even in today's financial climate ... School budgets should stretch to this sort of inspirational opportunity". This is all based around the "show" when a visitor arrives at the school and entertains. Sometimes they are professional scientists, sometimes science educators and sometimes actors with a script. In this article, the author shares some alternative ways of achieving all that Dunne expresses, albeit involving considerably more input from the school. This is using the children themselves, instead of visitors. The author describes two ideas that he has been exploring over the past few years: (1) "Big Science"; and (2) ""Big" Big Science". Both routes require a good deal of preparation, planning and rehearsal, but the rewards are tremendous. The problems the children need to overcome are varied and the evaluation afterwards provides an amazing opportunity for further development and learning. (Contains 6 figures and 6 resources.)