I bought a toy gun for my son when he was young but never bought any for my two daughters. I'm quite against pretend gun play. Even so, I notice kids can turn anything into gun, including their fingers. It's hard to stop them from being imaginative!
Just take a look at Tian Zi's creative gun, it's made of a potato chip canister and a cup. She's aiming at the door and ready to SHOOT!
Hopefully when she's drinking water and eating potato chips, she's not thinking about shooting... and killing.