Find articles of clothing that are made or inspired by animal skins. Hunters often stalk their prey in the dead of winter or during cold spring or autumn mornings, and hats are required to stay warm. Look for raccoon hats or hats that are made with rabbit lining. Many hats are now made with synthetic materials but otherwise appear real, so you don't have to worry about contributing to animal deaths. You can hang the hats on the wall or place them on a sideboard or coffee table in a vignette with other items. You can also use animal furs as rugs.
Find real or realistic firearms. A hunt is not a hunt without guns. Make sure the guns you choose are appropriate for the kinds of animals that live in the part of the world where your scene occurs. You can place a shotgun, for example, on top of a fireplace mantle or place on a table a partially dismantled gun that is being cleaned or repaired.
Seek out a taxidermist for some authentic stuffed animals or animal heads. These are a staple trophy of any self-respecting hunter, and a hunter's living room or den would be naked without one. A larger animal head would be appropriate above a fireplace, with smaller ones along the other walls of the interior. An elk or deer head with a full set of antlers would be especially magnificent.