Candy Canes! use pipe insulation/pool noodle with wire for smaller version, spray white, wrap ribbon and add bow!
PVC & Duct tape to make North Pole that lights up
Pine Cone Wreath. Change the pinecones to different items for each season and/or holiday. You could put red/pink hearts in it for Valentines day.
Umbrella frame without the cloth ~~ spray painted white, then draped with a long line of little white christmas lights, and hung out on the porch
How to decorate a Christmas Tree
Globed Christmas Lights
branches with lights at entrance would look great at Christmas