Tea sandwiches are just right for, well, afternoon tea, but also brunch, cocktail parties, or even a special lunch for kids, say at a birthday party. Since these are cut into heart shapes, they would also be charming treats for the valentines in your life. The sandwiches are filled with shrimp that have been baked, then peeled and halved, topped with sliced cucumber and arugula. Mayonnaise is spread on the bread slices, but mustard would also work.