“According to St Birgitta's De Praeputio Domini (”The Lord's Foreskin”), the Virgin Mary kept the Holy Foreskin in a leather pouch, before giving it to St John. For the next seven centuries, it remained in the pouch, before someone – possibly an angel – brought it to Charlemagne's court at Aix-la-Chappelle.”
https://www.buzzfeed.com/tomchivers/how-many-foreskins-does-one-god-need
Drop it.
And just where is the Holy Hand Grenade kept?