Ginger bread - easy peasy. Dump everything in the processor and blitz, chill for 15 mins and then dough is ready. Dough handles well - good for kids. Also, it's not too sweet, so the resulting biccies can handle a little icing nicely.
Made in North Yorkshire and available as a kit, apparently. Simple but sweet. This is the basic type I've made before. Using a cookie cutter for the windows always looks nice, but I'm no longer tempted to melt boiled sweets for 'glass' as they slowly stickyfy and melt on display.