Because of my niece, nephew, and my parish assignment, I have been to First Holy Communion Masses in three different parishes in two dioceses over the past few weeks. Let me just throw this suggestion out there to anyone who reads this.
Photographs.
Every family wants photos of their little Willie or Wendy receiving their First Holy Communion. But I've now been witness to anarchy when it comes to people disrupting Mass because THEY want THEIR picture(s), and no one else matters. Even grandmas and grandpas, who are usually the regular Massgoers of the crowd with some sense of Church etiquette, seem to creep into voyeurism when it comes to little Billy or Betty receiving the Host.
So what do we do? Now, personally, I'm all for doing a whole "Don Barzini" thing on them (upon seeing someone take a picture, I snap my fingers, some usher rips the camera from their hands and gives it to me, so I can take out the memory card, crush it, and throw it to the ground). You'd only have to do it once and I bet the rest of the adults would fall into place. This, of course, is just a tiptoe away from the "Sonny Corleone" approach (taking the camera from them, smashing it, then peeling off some $20 bills and dropping them on the floor as I walk away). NOW, before you shrug your shoulders in mock disgust and make that grapefruit face, realize that, as parish Priests watch this stuff going on at First Communions, this is EXACTLY what we are fantasizing about doing. We didn't start it, but we sure know how we could end it.

So here's what I suggest: We need to take a lesson from the Vatican. The parish announce that no photographs will be allowed in the Church (they can take as many pictures of Lyle or Leticia as they want both before and after the event). The parish arranges for ONE "official" photographer to be there. He/she will take photos of everything, the kids lining up before mass, the procession in, the kids sitting in the pews, and obviously the moment that little Freddy or Felicity receive Communion. The photos will then be posted on the parish's website, the photographer's website, or some web storage database like Flickr or something, where anyone can print, download, or simply peruse the pictures. If you take a look at this
LINK from the Vatican photographers, Fotografia Felici, you get an idea of what I'm talking about (except for the fact that Felici charges for the photos). I think people might be less likely to reduce a Mass to a school play if they knew someone was taking pictures for them.