Penny-in-the-Box is a mix of the Malaysian vampire "Penanggalan" --who flies about each night as a detached head trailing her entrails-- and a Jack-in-the-Box. Penny and the Box are distinct individuals and foils of each other: Penny is perpetually in high spirits and fits of deranged laughter, while the Box sees only what's wrong in the world and rarely speaks - in fact, the only thing the Box ever says "CRAM IT", and only when Penny retreats back inside. Despite their differences, the two couldn't bear being separate from each other, which is grand since they are permanently attached!