Deutsche Verkehrszeichen "zul. Höchstgeschwindigkeit" / German Traffic Sign 274-5 ... 274-130 "Speed Limit"

Official german traffic signs from 274-5 (5 km/h) up to 274-130 (130 km/h) in original size of 600 mm.

You'll need a multicolor capable printer or use different element heights with filament change in between. At least 3 colors. The mf3 files contain all needed parts for a sign, so you are able to set colors in your slicer. Simply resize the traffic signs in your slicer to match your demands. Adding holes for nails or screws can also be done in your slicer (at least the Prusa Slicer …)

Resizing to a diameter of 23,2 mm and a height of 2.3 mm will result in a nice 1 € sized shopping cart coin …

At Onshape look for “Verkehrsschilder”.