I thought I might come as a hobo.

I'll come as a jack o lantern

Looks like I lost the tail for my werewolf outfit so I'm coming as a gigolo now.

Wonderfully creative costumes! And LadyK has found one that qualifies.

Qualified: tombstone, hobo
Not qualified: werewolf, ghost, vampire, zombie, scarecrow, grim reaper, candle, pumpkin, bat, Coco the clown, grave digger, jack o lantern, gigolo

My costume will be a hobgoblin

I changed my mind again. I'm coming dressed as a gooney bird.

I'd like to join in the fun! I'll dress as Scoobydoo.

I'm going to dress in fake blood.

I think people are catching on. Solve this one before the witching hour!

Qualified: tombstone, hobo, hobgoblin, gooney bird, Scoobydoo, fake blood

Not qualified: werewolf, ghost, vampire, zombie, scarecrow, grim reaper, candle, pumpkin, bat, Coco the clown, grave digger, jack o lantern, gigolo

I'll bet anyone who wears balloons can come too.

You bet right, Gail!

Qualified: tombstone, hobo, hobgoblin, gooney bird, Scoobydoo, fake blood, balloons

Not qualified: werewolf, ghost, vampire, zombie, scarecrow, grim reaper, candle, pumpkin, bat, Coco the clown, grave digger, jack o lantern, gigolo

and I will fly in on my broomstick

And I'll fly out on mine as I yell "BOO" (the letters of which must be contained in the name of the costume)!