My family and I are planning a road trip from Portland, OR to Yellowstone this August. We're going by way of Spokane there and Boise on the return. We have 2 teens and a 10 year old that we want to keep entertained (with as few electronics as possible). Anyone have any suggestions of quirky roadside attractions? I'm thinking largest ball of yarn or some odd destinations in between. I thought these little surprises could perk them up. 1st day we're driving Pdx to Missoula, 2nd Missoula to northern entrance and staying the night, 3rd to Cody (going through the park and leaving NE entrance), 4th Cody (entering through East entrance to West Entrance and stay 2 nights, 6th day drive to Boise and stay the night then home.