This is the spool holder I use everyday at 3D-surmesure.ca with a small "Christmasy" twist. A very festive Spool holder. The tree shape is a little bit recess to make sure the bar don't get stuck.
If you prefer to use a multi material printer, you can add the tree shape :)
Both piece can be print without support.
The base can be in the upright position.
The roll need to be place with one star on the build plate.
I suggest to print the roll in yellow and the base (or the trees with a mmu) in green. but using your creativity is recommended.
The author hasn't provided the model origin yet.