There are several recipes on Pinterest for this appetizer; I found one here. This recipe makes 24 bites.
24 sugar plum tomatoes, cut in half
12 mini-mozzarella balls, sliced in half and patted dry
24 pieces of fresh basil
salt and pepper to taste
24 sword picks
a few tablespoons of extra virgin olive oil and balsamic vinegar
1. Salt and pepper the tomatoes, mozzarella, and basil.
2. Place one piece of tomato, mozzarella, basil, and then another tomato on each sword.
3. Repeat Step 1, twenty-four times.
4. When ready to serve, drizzle with extra virgin olive oil and balsamic vinegar.