Halloween in Sargent

I subscribe to the Nebraska State Historical Society blog and their post today included a photo of Sargent, with buggies on top of the roof of "Ottun and Martin". I remember dad talking about this particular type of Halloween prank and wondering how they got them up there! I wonder where the Ottun and Martin business was located in Sargent. According to the Sargent Centennial book, J. N. Ottun and/or the Ottun Brothers had a general store in the 1900s.