Estonian QWERTY, which I've added some letters to(ᆏ). I also have a Russian layout that I made myself, because the normal Russian layouts have weird button placement. I made my own so that most letters would be exactly where the matching letters in Estonian are. For some reason the layouts keep switching too easily though. Might have to reconfigure the hotkeys for switching them(currently shift+alt+1 and shift+alt+2).
Microsoft Keyboard Layout Creator is awesome.