Caipirinha (Sans Alcohol)

My wife prepared a traditional Brazilian meal, Feijoada Completa, while my brother and his wife were here visiting during the holidays. Since no one in our family really drinks, we had to come up with something that could replace the usual caipirinha. Here's what we did:

1) Slice one key lime in half and squeeze the juice into a glass (we threw the peel in as well).
2) Slice a quarter of a lemon and a quarter of an orange and drop those in the glass.
3) Use a pestle to mash the fruit and extract the juice.
4) Add 2 - 3 mint leaves, chopped.
5) Add 1 tablespoon each of fine granulated sugar and raw agave nectar.
6) Top with crushed ice and fill the rest of the glass with ginger ale.