It's nice to see old favourite programming languages getting a bit of love. "Circuit Cellar" magazine seems to be running a weekly spot the bug competition, and this week (week 2) it looks like a bit of FORTH. It doesn't say much about the program, but it is heavily commented (much more so than most FORTH code I have seen).
http://circuitcellar.com/The Week 2 submission deadline is June 16, 12:00 pm EST, so why not have a go!