If mindreading floats your boat -- think "Austria's Derren Brown" (The Independent), there's a brilliant show on at the Vaults in Waterloo, which has a Parent & Baby performance on Sat 3rd March at 3.15pm: Philipp Oberlohr's DAS FEST:
vaultfestival.com/whats-on/das-fest/?spektrix_bounce=true
Buggy park available and 2-4-1 offers. Babies don't need a ticket of course!