Slingshot. A projectile launching weapon made from a Y-shaped branch or piece of wood and elastic material. They are commonly used to hunt birds and other small game.
In Barbados it is called a guttaperk. I am told that the name came from a German brand of inner tubing of a tyre named Gutta Percha or something like that (spelling may be off but phonetics correct..) but as usual bajans will find a way of truncating or altering the sound to make it easy for them to say...