Safety Warnings: CHOKING HAZARD - Small parts. Not for children under 3 yrs. If Jack-O-Bop is the toughest dancer on himself, Skully is the toughest on everyone else. Less of a dancer and more of a wicked trickster, this skeleton's favorite game is hide-and-seek. He prefers to be both the hider and the seeker, skulking around the edge of the dance floor waiting to scare other Noggin Bops with a leap from the shadows.