ideas:
#Holdable jack-o-lantern
#A minigame
the mini game will be about a zombie invasion
for a max of say 12 players into even team
(you could use the CTF levels and stff but just add some more scary stff)
AIM for Red team(ZOMBIE TEAM)
there aim is to kill everyone in there other team
if the kill someone they become a zombie too
when they kill someone that player respawn where usually the red team is
this would give that player one kill point
Aim for Blue team(Human Team)
There aim is to get as mean kill points
to do this kill a zombie so they turn back into humans
When the kill a zombie that player respawn where the Blue team would usually be
every zombie killed gives them 1 kill point
the game would go on for 3 mins (but you can leave at anytime)
Winner team gets gralats most kills get extra
#trick or treat
You open ur GH so anyone can come in at anytime until u close it
when u open it it gos on a list of other open GH's
a player can choose a random GH and go have a look at it