Combine the garlic, salt, pepper flakes, and olive oil in a medium glass bowl. Cover and microwave on high until the garlic is golden, about 2 minutes. Cool. Add the bocconcini and refrigerate for at least 1 and up to 24 hours. Thread a yellow cherry tomato onto a skewer, wrap a bocconcini in a basil leaf and add to the skewer, then finish with a red tomato. For a dramatic presentation, use both pear and cherry tomatoes. Halve the top cherry tomato and use it as a stand for the skewer. Repeat with the remaining cheese and tomatoes. Save the oil for a dipping sauce and serve with a small bowl of kosher salt.