While Goody Guns are simple cookie cutters to make edible 'guns', it should be noted as a matter of course that at all times real gun safety is paramount. No half measures.
To that end, just as a reminder of the basic four rules, based on those recommended by the late Jeff Cooper: note these well and implement to the full all the time. Use them also to educate others.
1) - A firearm is loaded, always (even when you just checked it clear!).
2) - Never point a gun at anything you do not wish to destroy.
3) - Keep your finger OFF the trigger until ready to fire.
4) - Know your target - and what is beyond.
The reason for #1 stating that a gun is always loaded is simply that that is the safest way to go. Too many times people have considered a gun cleared, then disobeyed the other rules and "bang" - someone gets hurt. A common possible error is dropping a magazine from a semi-auto but forgetting there is still a chambered round!
It might be said that rule #2 is the "catch-all" in as much as, if a gun is never pointed at any time at anything that could be hurt or destroyed, then perhaps the worst problem might be a hole in the wall! That of course brings in #4 as well, as we need to know still what is beyond a potential point of impact.
Be safe and teach safety to your children and every gun owner you meet. The life saved may even be your own.