The Big Wand is an object in The Fairly OddParents. It's the source of all the fairies' powers in Fairy World. It was also seen in Jimmy Timmy Power Hour.
When Denzel Crocker teleports him, Jimmy and Cosmo and Wanda into Fairy World, he knocks it over to take over on the fairies. Jimmy Neutron though was able to stop Crocker and re-power The Big Wand and save the fairies and Fairy World.