-Locate all 5 Santa hats and place them near the fireplace.
1. On the "Punchomatic" (clockout machine)
2. On the hazmat bin dispenser
3. One the water bucket dispenser
4. On a bookshelf in Santa's office
5. On the fireplace itself
-Create a save and then throw them all in the fireplace.
-Reload.
Sometimes it doesn't count Santa hats so you may need to repeat more than 10 times. I suggest placing them in individually because it commonly didn't count some for me if I placed them in a container first and then put them into the fireplace. Merry Christmas!