Puzzle wreath -- I just found a couple of puzzles that are missing pieces. Maybe I can upcycle them into something like this.
Great ideas to recycle jigsaw puzzles
Fall tree craft using puzzle pieces for leaves - by Play Eat Grow (Altered book idea. Put family member names on puzzle pieces without direct links, representing all the fam without who is step-or-half-anything.)
Puzzle Piece Crafts for All Seasons
Make a cute Monster Magnet, Pin, or Necklace using odd pieces from an incomplete puzzle, googly eyes, and whatever embellishments you have on hand -- click for easy instructions.
Next christmas craft?