The Easter Bunny doesn't visit Thinktank, but the Easter Dinosaur does and they have left large Dino eggs hidden around the museum. 

Come to Thinktank over the Easter holidays and see how many Dino eggs you can track down in the giant egg hunt. 

When you find an egg mark  it  on your trail sheet, and once you have found them all bring the evidence to the shop to collect a small prize.

This events is included in the Thinktank admission price.