"Time to get JOLLY on your naughty asses!!" - Santa3000(?) from Futurama.
Admit it, that's the LAST thing you wanna hear him say Dude, where do I start to describe the awesomeness here? The great and imposing composition? The new kinda gritty twist on a Christmas figure? Or the fact that Santa's a SWORD?! Hmmm.... I'll take all three for $500, Alex.
Of course though, for it to appeal to kids, the explosion would be of particles of Jack Frost pulverized into a gentle snow fall. Then the credits roll. After the credits, you'd get a tiny part where the snow starts to reform back into half of Jack Frost's face... evil grin and twinkle in his eye.