In the 1st stage of the Snow level,go to where the cottage is next to a red button.If there is a snowman on top of it,than stand on the ledge and throw SMALL bombs at him until he dies.Now don't jump off the ledge!Get out a PUMPED bomb and throw it off of the ledge onto the foor infront of the house and bounce off of it on to the house. Now go to the side where you can see an Icy tree and jump off of the house onto where the tree is. Blow up the tree.Congatulations!You have found the CUSTOM PIECE!!!

Highlight battle and tap start until you hear a sound.