No boxing tricks for hunters but as a lone hunter to get aggro back on your pet, Disengage is your godsend until FD. Usually drops back to pet most of the time; get BITE or something similar to help your pet add aggro as well beyond Growl, it helps. Once you have FD just open with a huge burst of DPS, FD it away, and it should stay on yer pet the rest of the fight.

Also not boxing but awhile back I rolled a rogue with a friend who also rolled a rogue...we took turns ping-ponging aggro via backstabbing, it was both funny and imba, most mobs went down quickly neither of us taking much dmg :p