I Solemnly Swear That I Am up to No Good™/Mischief Managed™ Giant 20 oz. White Mug "Action Figures" This is the perfect gift

This is the perfect gift for the Harry Potter fan and Hogwarts student-to-be in your life

Now readers are invited behind the scenes to experience the show's journey to the stage -- from the earliest phases of development with producers Sonia Friedman and Colin Callender

is made of 100% cotton t-shirt

Keep your favorite hero with you in a new way with this

and come in a special edition box with tissue paper

I Solemnly Swear That I Am up to No Good™/Mischief Managed™ Giant 20 oz. White Mug "Action Figures" This is the perfect giftI Solemnly Swear That I Am up to No Good! This giant 20 ounce Harry Potter mug features the password to open the Marauder's Map on one side, and the phrase that closes the map, Mischief Managed, on the other side. This white ceramic mug holds 20 ounces of your favorite hot or cold beverage and is microwave and dishwasher safe.