I dont think playing with a tonka toy or a model of a 737 can lead a child to picking up your car/plane and killing themselves or someone else.
Since a toy gun is approx the same size (in most cases) as a real firearm, and your kids' playtime with said toy gun involves pointing it at objects not meant to be dead, the first "uh-oh" when they find a real firearm in your house could be a bad situation.
Im not saying that any kid who plays with a toy gun will end up shooting someone or themselves, but you are increasing the odds.
Toy guns are perfectly acceptable, in my book, as long as you follow the previous posters code of responsibility and teach the kid that this toy needs to be respected just as if it were real.
I had many cap guns, water guns, cork guns, et al growing up, yet my father always taught me that it should never be pointed at something I didnt want dead. I can still remember the willow tree branch flogging I recieved for shooting my cork gun at my neighbors but.
Love your avatar! I believe if you watch closely, they have Dillon presses in their "bunker" in the first movie.
he spent all that money to make his car look like that just so he could park in front of a kfc, he's got a big brain 
