Truck refrigerator magnets

I made these for my son who is into all things truck. They all use three 8x3mm (real thickness 2.65mm) magnets found on Amazon here.

Slice at 0.3mm layer height to give one layer of thickness to hold the magnet in. Two pauses/color changes/M600s need to be put in the slicer, one just before the magnet holes are closed in so you can insert the magnets and another if you want to make the upper lines black like in the pictures.