There are several free designs for neat #Braille things to 3-D print at Pinshape, including clothing tags, light switch identifiers, a Sudoku board, and a dishwasher clean/dirty flag.
I'm still learning (always), so I'm going to try out these fridge magnets. They have large letter cutouts at the top, which looks very distinguishable by touch, Braille at the bottom, and alignment triangles to chain letters together.
The sad part of looking at 3-D printing patterns that incorporate #Braille is how many such patterns seem to be contest entries in which sighted people explain how the item will benefit "them", i.e. blind and low-vision people.
In some cases, even the creator has never printed the item, and in others there is a shaggy dog story about not bothering to look up the basics of Braille (like, it's fixed size) or consult anyone blind until after delivering something useless.
That is tech's attitude towards users in general: it's the young white men with totally unfounded ideas and a willingness to abuse systems they don't understand who are important. People who have been buried in some context for years and can tell you absolutely everything about it and what would work perfectly for people in that context, they are mere consumers (or maybe whiners if the tech foisted upon them with no thought for its practicality does not work), never partners.
Mostly hackers, mostly in Urbana, IL, talking to each other & our friends on like-minded servers without giving our personal data to the marketing machine.