Doyle Brunson's card protector and lucky charm is an object with the "Ghostbusters" symbol on it. It's nicknamed "Casper." There was an auction once and Howard Lederer was named as the beneficiary of Casper after Doyle passes on.
Doyle Brunson's daughter Pamela Brunson is borrowing Casper as her card protector at the moment. Right now on Day 2b, Pamela has around 91,000, and her brother Todd has 118,000 in chips.