Filters is just a useless little amusement that I stumbled across the other day. I thought it was sort of funny, so I fugred I'd bring it up. Basically it just translates text into humorous languages/ speech patterns like kenny from southpark, the swedish chef from sesame street, l33t sp34k etc. 

echo "today was a good day" | /usr/games/eleet
echo "today was a good day" | /usr/games/upside-down
echo "today was a good day" | /usr/games/spammer
echo "today was a good day" | /usr/games/jethro