This is a remix of this: https://www.thingiverse.com/thing:3388702
I made this for my yet to be born grandson. I thought the original was a bit too thick for my taste. Shaved about 8mm off of it. I also added grooves on the bottom on both sides to give a place to grip. I used the following PLA filaments:
Cross = Tianse Green
Hexagon = Tianse Purple
Triangle = Amazon Basics White
Square and Star = AMZ3D Red
Pentagon = Prusa Galaxy Black
Slice = Prusa Galaxy Silver
Circle and Oval = Maroon from Prusa but is not Prusament
Base = Amazon Basics Blue
Hilbert Curve top pattern. I did get a small amount of lift in bottom right corner unfortunately. But all in all turned out well.
Amazon Basics PLA
I only used supports under the tray where the grooves are. Sliced in Slic3rPe.