After removing the crusts use a bat-shaped pastry or biscuit cutter to cut a shape from each slice of bread. You could use any shaped cutter you have, or a variety of different ones to make various themed sandwiches for a special party, for example.

Spread the tuna or humus mixture onto eight of the shaped slices and then put the remaining slices on top to complete the sandwiches. You have now made some batwiches - a tasty snack for hungry children and vampires alike!