HAYWARD (AP) — Organizers of a Northern California gun buyback are looking to get weapons off the streets. But gun owners shouldn't show up looking to hand over their arms, unless they shoot rubber bands, Nerf bullets or imaginary lasers.

An elementary school in Hayward is planning to hold a gun exchange Saturday, giving students a book and a chance to win a bike if they turn over their Super Soakers, Galactic Space Blasters and cap guns.

Strobridge Elementary Principal Charles Hill tells the Hayward Daily Review that toy guns desensitize children and make it easier for them to start using real guns. Hill also pointed to incidents where police and others mistook toy guns for the real thing.

Police will also be at the event to talk about gun safety.