Christmas updo styles

Hi. I am a guy with longish hair just below the shoulders. It is all the same length as I do not in any way like layers in it. It is also a little wavy. I am tired of it just hanging down or in a pony tail. I am looking for style ideas for Christmas season that are more fancy. Do not want to cut my hair or add any layers. I am willing to try most any reasonable style ideas including updos if there are ones people think are ok to try. And yes it must be more fancy for the holiday season. I am open minded as to be willing to try most any styles even if they may be mostly done on just women. The only men or women stlyes seldom apply anymore alot of the time anyway. Thak-you in advance for any suggests one might be able to offer.