Ashes from that fire , which are believed to contain the elephant 's remains , are kept in a 14-ounce Peter Pan Crunchy Peanut Butter jar in the office of the Tufts athletic director , while his taxidermied tail , removed during earlier renovations , resides in the holdings of the Tufts Digital Collections and Archives .
Some of what was believed to be Jumbo 's ashes was put in a Peter Pan Crunchy Peanut Butter jar .