The 3rd annual Sumobot signup sheet is out. You can fill it out online:
https://docs.google.com/spreadsheet/viewform?fromEmail=true&formkey=dEg1a01ER2ZFVE9memYtX3h1U2xLVlE6MA

You can read about the Sumobot competition here http://wiki.lvl1.org/Sumobots

There are loads of links and information about sumobots on that page. IT IS NOT TOO LATE TO MAKE A BOT!

Also there is a costume party that night so be sure to dress up!