Unicode On-Screen Keyboard: insert text snippets into any Windows app
...It's basically a virtualkeyboard with ability to set any amount of characters in one button.
Uosk comes with some preset keyboard: Arabic, box drawing, Devanagari, emoji, Greek, Hebrew, Hiragana, IPA, Katakana, Russian and Windows-1252.
GCompris is a high quality educational software suite comprising of numerous activities for children aged 2 to 10. Some of the activities are game oriented, but nonetheless still educational.