I'm about to write a free program that simulates typing a message in real time, mostly for making videos (a better, prettier way than what a lot of novice video producers on YouTube do, which is to open a text editor and type into it in a gigantic font size). Since this program's purpose if for video, I would like it to make typing sounds; this would be a lot better than e.g. playing overused music, and it would also be better than silence, because it creates the illusion that what what is shown is being typed in real time.

So, can anyone record some sounds of keyboard keys being pressed and upload them, or point me to some if they already exist (under a free art license)? I already searched OpenGameArt and Freesound.org, but all I found was sounds of several keyboard presses in a row, which won't be suitable for what I want to do with this program; I need individual, isolated key presses so I can play a press sound for each letter entered.

I would personally prefer a mid-1990s-era keyboard sound if there's a choice, but it doesn't really matter as long as it definitely sounds like a full keyboard (loud or at least medium noise, not one of those quiet, clicky laptop keyboards).

Any of the licenses accepted by OpenGameArt will do just fine, but I would prefer CC0, CC BY, or CC BY-SA (for the sake of videos made with this).