While you can always revert to the traditional blue baby boy nursery theme, you have lots of other choices as well. In fact, you can go in a completely different direction, such as green and white, red and black, tan and black, green and brown, yellow and green, yellow and white, etc. You can build an entire nursery around a baby boy nursery theme, such as cowboys theme. You don’t have to live out West to incorporate a cowboy theme into your baby boy’s nursery. Cowboys, horses, cows, and lassos will look simply adorable in your baby’s room. Choose colors from the crib set of your choice. Do a Google search of anything western or related to cowboys, horses, etc. Remember, you don’t have to buy everything that is directly related to a nursery.