Only Epson and Canon used to offer lots of beautiful papercrafts. Now, HP has finally entered the world of paper modeling with probably their first papercraft model from the movie Shrek the Third. Download and build the gatehouse, the palace and the walls then put them together. This is a model that your kids will surely love. 
Hi Michael,
We were glad to see you like Shrek the Third 3-D kingdom paper model. HP has actually been offering 3-D paper crafts for the last few years ... and we continue to create new ones. Here are a few others you might enjoy:
3-D paper creatures
http://h10025.www1.hp.com/ewfrf/wc/acProject?project=3dpapercreatures&lc=en&cc=us&dlc=en&extcat=toysstickerspuzzles
3-D characters from Shrek the Third
http://h10025.www1.hp.com/ewfrf/wc/acProject?project=3dcharactersfromshrekthethird&extsubcat=games&lc=en&cc=us&dlc=en&extcat=toysstickerspuzzles
Fortune gift box kit
http://h10025.www1.hp.com/ewfrf/wc/acProject?project=fortunegiftboxkit&lc=en&cc=us&dlc=en&extcat=giftwrapboxes
Melanie - HP
Looks like I missed those. Thank you for pointing that out:-)