Exploding boxes continue to be popular.  Here are some links to instructions, the occasional template, and some examples.  Have a favourite (or one you've made that is truly stellar) that isn't here? PM maryanne a link and I'll be happy to add it.

A video by CraftyAlice on making exploding boxes from scratch

Instructions by Suzanne Saltwell 

Anso's instructions from a past UKS Cyber Crop 

ScrapDolly's instructions  for a Valentine box, with another version here .

KaiserCraft PDF - will download the PDF when clicked! 

Templates:

Template from About.com:Rubber Stamping 

Template from SplitCoastStampers 

Variations:

exploding Prism

Octagonal exploding box by Voodoo Vixen from the UKS Summer mini-book event 

very pretty, very different sort of exploding box instructions at magic-boxes.com with some lovely samples here and here

Not instructions but some interesting decorative "page" cut-out  variations on the Crafty Red blog - hard to explain, just have a look!