I found these on Pinterest and though I would share. Enjoy!
Cute punch bowl
Glowing Hand punch http://www.chow.com/recipes/30137-glowing-severed-hand-halloween-punch
Orange Witches Brew Punch http://www.tasteofhome.com/recipes/Orange-Witches--Brew-Punch
Gloved hand ice cube http://simplystated.realsimple.com/2009/10/06/creepy-treats-for-halloween/
2 liter soda bottle with sharpie face
pumpkin face for orange - ghost face for sprite - witch face for grape - etc ...
Frozen gummy worms in place of ice
Shrunken head cider
Candy Corn Drink http://www.bhg.com/halloween/recipes/sweet-halloween-drinks/
Dry Ice Root Beer http://notjustcute.com/2011/10/25/potable-potions/
And for the adults ......
Creepy cocktails http://blog.hwtm.com/2010/10/9-ultra-creative-halloween-cocktails/
Jell-o shots http://www.myscienceproject.org/halloween.html
Gummy worm shooters
Brain Hemorage http://www.flickr.com/photos/kb-a/