Piko HO Scale 57081 Roadbed Christmas Train Starter Set. Piko 57081 HO Scale Roadbed Christmas Train Starter Set. Please note the following. About Yeti Freddy Hobby Shop. Yeti Freddy Hobby Shop is an American hobby retailer based in Scottsdale, AZ. The company was established in 2019 and offers a rapidly-expanding assortment of premium hobby products to customers across the world. The company specializes in diorama products, miniature scenic accessories, model figures, model buildings and kits, model cars, and trucks (including die-cast).