Can you all think of any tasks that might be appropriate for the GHOP?

See these posts for more detailed information:

http://drupal.org/node/195913
http://code.google.com/p/google-highly-open-participation-drupal/wiki/Ho...
http://drupal.org/node/200510

Basically, this contest is farming out small tasks to students that can be completed in one week. Do we have anything that might be appropriate? I'm personally thinking the porting to 6.x might be a good one, since the worst that can happen is that a branch we're not even using yet won't work. Let me know what you all think.