These are 3D models of various shaped traffic signs i did for my son.
Poles are separate from sign tables for easier printing. Once printed sign snaps on to pole. You may glue it but it is not necessary.
Sign height including pole is about 65 mm.
Intention is to print sign stickers on paper in color and glue them to the sign tables.
You can get models and more details from https://www.thingiverse.com/thing:4394933.