Choose any fillamnet you like that is easy and fun to print.
Slicer settings should be set to anything you like and goes well with your filament.
After you print one or more ornaments, clean them from any imperfections.
Then cut some string and pull it through the eyelet on top of the model. Then just tie it so the ornament won't fall. You can also use wire hook as a replacement for string.
John
