This is a take off on AWSW “Word Clock” “Word Calendar” at “Printables”    ←- This link has all the build information for the clock (super cool project all by itself).  Very easy project 

Prices on 16x16 LED matrix is way down on “Ali” (about half of Amazon)… I used an ESP32 as a controller and “WLED” for control software .(super easy)  Plenty of step by step videos on the Utube..

When ordering LED matrix panels, keep in mind you need around 10A@5v for each panel if you crank the thing all the way up..(I have been running a 30A PSU and works fine at my settings (about ½ brightness)   The 300W Meanwell is a top pick for me..
All printed on textured PEI plate with PETG HF on Carbon1 default settings
I printed all with “Translucent” filament  and seemed to work just fine.. White was suggested and it might tone this down a bit (LEDs don't like photos)
Video