Hi ... There are ornament recipes for salt dough that can be baked and painted, and cinnamon dough that makes great smelling ornaments.
You could use last year's holiday card pictures to create a new string of picture-garland. What about using family/friend pictures to create a 'faces' garland?
Creating a 'new' reusable garland by taking all the mis-matched and odd-pieces of holiday items, in the bottom of the storage boxes, and attach them with string.
The garland base could start with ribbon, rope, twine, cloth strips ties together, or a combination of them all.
Any old jewerly, beads, small childrens toys (like meal-toys), game pieces, paper money (reminder/teaching giving at the holidays), verses, personal says, poems, prayers, ect ... Hope that gives you a few more ideas to ponder.