Give your banister a festive touch by using pool noodles as a base. Start by slicing open pool noodles lengthwise and sliding them onto the railing of the banister. Use zip ties to help prevent the noodles from slipping. Then, glue ornaments, ribbons, poinsettias, and other decor to the base. This DIY can work both inside and outside your home. For outdoor decor, be sure to use a strong and weather-resistant glue, like E6000, to keep the pieces secure.