Robert Kairo just announced a bug bounty program for SeaMonkey. The largest bounty is $1000 and the total for the bugs in the program is currently at $2700. Check the site for more information if you’re interested.
This is similar to bounty program Mark Shuttleworth did a few years ago. The Mozilla Security Bug Bounty Program is also available with $500 and a T-Shirt for a valid security bug.