MAX7219 Led Matrix support

Wanted a panel mount for the MAX7129 module, used in an arduino project I am doing. Thought the led matrix would give it a proper flavour of fun fair: old style, flashing in your eyes, RED! This one I installed it with three M3 flat head screws, very short, since the wood I used to screw it on is only 3mm (as displayed in the pictures). Fits very snug, it is easy to remove and insert the matrix. Printed in PETG with 0.2 layer height, but PLA should work too: I have other led matrix holder in PLA