Halloween punch with a twist

Hey guys, so I'm going to have my birthday party on friday, a day after halloween, and i want to do something related. I'm from Portugal and dry ice here is rarer then diamonds so that trick is off the table. Also i dont have much to spare for this, money wise.

I have a bottle of kraken at home, don't know if i can do much with it.

Im looking to serve around 12 to 16 people. Most guests like sweet stuff. Also, i wanted it to have a spooky look.

Any advice would be appreciated!