Okay, I got some video of kids playing the Madame Sarita game up on YouTube. Here it is:
All in all, it turned out pretty well - most of the kids seemed to really enjoy the custom controllers. The fact that they didn't have any wires, and that you didn't even touch them (except for the skull, which could be picked up off the table and still work), gave them a really mystical feel.
We did have a few technical difficulties during the night, but once we got through the first few sets of visitors, it ran smoothly for the remainder of the night.