aha so.....(I'm loving this thread Rose it's a lot of fun making wild and cray irrational guesses lol), so anyway...more clues there eh, so it cant be anything you KNOW has been done by other MFCers, it's a costume you are buying and not making up yourself as you go along, and it's not a toucan and has to be big enough that you will need help to carry it (well that was Mika's specific wishes at Brixton, the cheek of that guy ), sooooooo.......
is it a..
killer whale?
T.Rex? (then you can just come in a black curly wig and glam rock sequinned flares with mega big platform boots (and then you could also see over the crowds GOOD THINKING ROSE lol).
the loch ness monster?
A Giant jelly fish?
Giant octopus (cos I think it would look awesome lol)