Mad Scientist Tap Handle New in Box. Brand new in box never displayed. The item “Mad Scientist Tap Handle New in Box” is in sale since Monday, December 7, 2020. This item is in the category “Collectibles\Breweriana, Beer\Tap Handles, Knobs\Other Beer Tap Handles, Knobs”. The seller is “sidepikeitems” and is located in Kunkletown, Pennsylvania. This item can be shipped worldwide.