Halloween Eyeball Ice Cubes

A friend of mine is in a rental situation that includes several lovely fruit trees.  Her landlord recently wanted to make some repairs to her roof, which necessitated trimming the trees out of season for pruning.  Before the tree was stripped, my friend offered me a boatload of limes. 

Since I don't eat meat, I don't use them for sauces like you might use for fish or such.  So, my best thought was to juice the limes and freeze the juice for baking.  Luckily, I'd just gotten the juicer attachment for my KitchenAid Stand Mixer and was so excited to get to use it!  I did this over several days, and ended up with about 24 cups of juice.  I used ice cube trays for portion control, so I could thaw as much or as little as I might want to use.  As I was juicing, I had a thought--what if I put maraschino cherries in each hole, with frozen juice around it?  I thought it would make "fancy" ice cubes for drinking in something like ginger ale or in some sort of mixed drink. 

The timing couldn't have been better, because I think these cubes make great "eyeballs" for a Halloween party!  What kind of signature drink would you invent for the occasion?  Please leave a comment below to share your ideas.