A special snow structure contest will be held at the Van Riper-Hopper House. Residents can stop by the museum between dawn and dusk to show their creativity by making their own snow houses, castles, or any structure they can think of. Structures should be built near the front of the Van Riper-Hopper House or near the large banner board. Participants need to e-mail their contact information or leave a phone message at 973-694-7192. Every entrant will receive their choice of either a historic book or toy. A surprise grand prize worth $50 will be given to the winner. Staff members will take photographs of the entries, but if a structure melts quickly, participants should take their own photo and e-mail it to museum staff. The contest ends March 9. The Van Riper-Hopper House is located at 533 Berdan Ave.