Cosmo looks a lot like the Easter Bunny to me – and luckily for us Jacinda Ardern has confirmed that the Easter Bunny and Tooth Fairy are considered essential workers while we're in lockdown!
Did you know, Cosmo arrived at the Gallery in a toolbox? Take a look here.
Have you seen Cosmo in real life? He gets blown up like a balloon and is 2.8 metres tall. That's one huge bunny!
It's your turn to give Cosmo a makeover. Download the colouring sheet here. When you're finished, you could take a photo of your work and ask an adult to tag us on social media (#chchartgallery).