I don't normally go all out with theming for parties, even down to having just plain tableclothes. But DD is having a science party this year for her 9th birthday which means I can make it a bit more exciting food-wise.
I've had a look on the internet but they all seem to be obsessed with science being mad and ghoulish. DH is a science teacher and very opinionated about science being accessible to all, not mad and normal people can do it too!