15 illuminated, singing see-saws arrive in Leicester Square Gardens next month, with the public able to use them for free.
LED lights and speakers in the see-saws are activated by movement, meaning they come to life with sounds and light sequences when people are on them. When not in use, they glow a solid colour, which should brighten up Leicester Square as the days start drawing in.
The see-saws are an installation called Impulse, which was previously in Montreal in Canada over Christmas last year as part of light festival Luminothérapie.
Impulse will be in Leicester Square 5-27 October, and the see-saws will be free to use.
See also: 11 secrets of Leicester Square