I bought the pictured Christmas display in 2019. It was just a cheap, fun display, but the ground steaks didn't last when hammering into the dry Aussie summer ground. After 2 Christmases, the steaks were beyond use, so I built some replacements that were sturdier.

These survived a hard beating from a large rubber mallet as well as the heat and UV from the the Australian Summer.

I can't remember the exact print settings now, but I printed them sideways, for strength (tried upright first, but was too weak) and supports are necessary.

STL and Autodesk Inventor files uploaded.