Tom's Unicode Scripts So Life is Easier
Tussle, or "Tom's Unicode Scripts So Life is Easier", is a collection of some of the utilities that Tom created to explore various Unicode things. If you've read some of his Unicode treatises, you've probably seen him uʍop əpᴉsdn ʇsod. With his leo script, you can type just like Leonardo too. Some of this will undoubtably be in Pʀᴏɢʀᴀᴍᴍɪɴɢ Pᴇʀʟ (there's a script to do small caps too), ｂｕｔ ｙｏｕ ｄｏｎ'ｔ ｈａｖｅ ｔｏ ｗａｉｔ (that's not CSS doing that).
Besides the fanciful programs, there are various utilities to check the normalization forms, do better case mapping than Perl's builtins do, and various programs to search the Unicode Character Database. I've been having quite a bit of fun playing with them today as I tried to figure out how to write a short description for each.
If you can't see some of this post, you probably need a proper font that handles the characters.