This is a custom tag I wrote that generates a random string at the set number of characters using the characters you decide on
Alpha
AlphaNumeric
or Numeric
Uppercase, lowercase, mixed case...
It will create a variable that you name as you wish and call however you'd like.
It is a small example of how to create a custom tag and will hopefully send someone in the right direction. It is also fully functional and has come in handy quite a few times. Enjoy and as always.. Have Fun!