I finally made it back to The Home Depot Do-It-Herself workshop.
The project was a two-sided decoration.
Any large piece of wood and a smaller one could be used.
Scraps from other projects would make this very low cost.
Attach a small board at an angle on each side to
make the hat/stem with nails/screws, or even wood glue.
I painted mine to look like a pumpkin on one side,
and a Snowman on the reverse.
For Halloween I can add a detachable face,
then just remove for the fall Season.
Mine is under cover on the porch,
but if you want to put it out in the weather,
be sure to seal the paint.
Another idea is to make smaller versions to hang on a door.