I found this idea online but put my personal twist on it.
I glued the keys to a large piece of black paper with hot glue. I then used push pins between the keys to hold the paper to the wall.
I have received so many compliments on this! There are a few things I would change. . . first, I would NOT use hot glue to glue the paper to the top of the keys. It is bumpy and you can tell that I had to layer the paper to get it to cover the larger keys. Second, I would be a bit more careful gluing the keys to the paper. The keyboard is a bit wavy and it bothers me.
It has been very helpful. I'm currently teaching second graders how to type and I'm working on finding letters on the keyboard with first and kindergarteners.
I'd love to see yours when it's done!