Simple,
The rules are as follows.

1. Try to make your sigworm look at FUNNY as possible.
2. The MOST AWESOME sigworm will will win.
3. It doesn't matter how good of an artist you are... as long as your worm looks LIKE A WORM.
4. Judges (or random voters) will pick the winner.
5. Do whatever you want to make your sigworm as funny as possible.
You could put it in a dress if you need to!
6. You can change your pic up to three times only.

Any questions?
(rushed) SAMPLE TIME
I know... my sigworm will never be comfortable again around me.

you can barely recognize him!
not really funny, oh well...
edit 1
edit 2
last edit, finally!

drat, need one more change...

This goes as back as 2004, but you never stated it should be new, so, enjoy.
http://forum.team17.co.uk/attachment.php?attachmentid=18382&d=1101667098
edit: well, it's not my sigworm, but you can pretend it is.

That's... interesting.
It looks like splapp grew a beard... and hair... and an eye...and alot of ugly.