Donald has a ride-on sized train layout in his backyard. There's a large tree (home to Chip 'n Dale) that's out of scale, so Donald moves it while they're out; they come back to see their tree moving. No problem; one of Donald's model houses is just their size.—Jon Reeves
Donald Duck has a model train and town laid out in his yard. He decides to move a live tree that doesn't match the model scale, not realizing it is home to chipmunks Chip and Dale. They in turn move into one of the miniature houses.