I think what we need is a big ol' Turkey boss event.
Seriously, we merge in November & have a special Thanksgiving event w/ a new turkey world bosses.
Every time a turkey boss is killed, all "at level" players in it's aggro table get random wedding food, monster cards & possibly titles.
"At Level" really just means, appropriate level per region. So a boss for levels 1-9, 10-19, 20-34, 35-54, 55-69, 70-79, 80+ located in the various regions.
So if a level 50 toon helps kill the level 1-9 boss, the boss would not drop any gifts. Same with the level 1 toon "helping" to kill the 80+ boss, no drops.