Just add water and watch as your very own Unicorn hatches and grows! In four easy steps you can hatch and grow your very own Unicorn! Step 1: Place egg in jug or container and add water. 2: wait 12- 24 hours and watch the egg crumble away.3: Once entirely cracked add new water. Step 4: Remove shell and place in new water and watch as your very own Unicorn GROWS GROWS GROWS Daily. The information provided here is as complete and accurate as possible; however, product names, colours and/or materials are subject to change without notice.