How to Find Tin Foil Balls in Your Grandparents' House

My family is from a tiny town on the Oregon and Washington border about 30 minutes from Mount St. Helens. I would love to be a part of the team of people going over your grandparents' house to try to find anything tin foil balls. You should start knocking on the walls or... Right. Have you been in the attic? No, I haven't. It's more like a crawl space. Get up there. But the basement is definitely a terrifying site to behold. Is there really a basement? A California basement? Yeah. Great place to hide 20 grand. Okay. My last one is a Mount St.helens hometown. Hide it all.