I'm making the fake shack from Kenji's recipe for the second time this weekend with some friends. What I am wondering is whether anyone knows where I could get a tool that, for lack of a better title, I have always thought of as a burger smasher. In case this is unclear, check out the tool the woman is using to flatten the burgers in this clip from Diners, Drive-Ins, and Dives. So, any ideas on where to get this tool and what its name is? In case you have specific knowledge, I'm in Chicago.