I made these to donate to Starlight Children's Foundation hence the purple and yellow but go nuts! Remember to keep it high contrast for those with partial vision.
Don't scale as the Braille cells are a specific size.
The tray is optional but, if using it, the Braille has to face up or they won't fit. Will probably put a top layer on the edges next time but I like the look.
The author hasn't provided the model origin yet.