Cut out shapes carefully with mini cookie cutters (hearts, X's, O's, I <3 U's all etc all work). Cut out as many as you want in your salad...and have fun eating the edges or save them for another use (like melting in another dish).
In a small bowl, toss tomatoes with a drizzle of balsamic vinegar and olive oil.
Place cut-out mozzarella pieces in or on a serving dish or plate. Add tomatoes. Sprinkle with salt, pepper and basil. Enjoy!