Yeah, someone actually made these in-game! It totally wasn't me.
One final kid-friendly factor in LittleBIGPlanet is the ESRB rating, a squeaky clean "E for Everyone". Several months ago, a friend from church approached me about getting a PS3. He asked me if there were any games I'd recommend for his kids. Without even thinking about it, I told him to grab LBP immediately. There's hardly any objectionable content in the game, online levels notwithstanding. Even though his kids are very young, I knew he'd approve of it, and not have to worry about swearing, violence, or anything of the sort. Just a week or two ago, he reported that Sackboy gets the most playtime out of all the games that have. LittleBIGPlanet is the definitive "E"-rated game, in my opinion.
Any discussion of LittleBIGPlanet must include the plethora of user created content. The online worlds to explore are fascinating, with thousands upon thousands of levels to try out. Some of them are really mind-boggling, like the Tetris machine, the working calculator, and the remake of Contra. (Just be careful when checking online levels out with your kids.)
Much more could be said about LittleBIGPlanet. The appeal of the game lies in the sheer, unbridled sense of imagination and wonder you get when playing. In a landscape of plain, unimaginative kids' games, LittleBIGPlanet truly stands out as something special for the young and old alike. If you have a PS3, and are a parent, you owe it to your child, and to yourself, to get a copy.