Adult party idea: soak gummy bears in vodka for days. Great (and much easier) alternative to jello shots. The gummy bears soak up as much vodka as you pour in the bowl and plump up as it's absorbed. More vodka = stronger taste.
Skittles vodka (or Rum) Smooth, sweet and taste just like the Skittles. Can be imbibed straight, but if you add a mixer like Sprite, Ginger Ale, etc. then be careful because it taste just like a Skittles drink without the alcohol.
Fill syringes with jello- great for a 'scary' party or Halloween party. Instead of jello, I would put alcohol in the syringes to go with a drink. you can add the amount of alcohol you want in your drink