I tried making one years ago , they always look like a fun wholesome way to spend the afternoon with the DC , in a Christmas Cheesy Hallmark Film sort of way .
Found the recipe for crispy gingerbread ( used a gingerbread man recipe)
Cut out some templates from card (cereal box )
Made some extras , just in case of breakage , ( can eat the spares )
Mixed up royal icing and bought clear decorators 'glue' from Lakeland
Let the dough chill , rolled out on parchment , cut out , bake .
Cool the biscuits
Trying to get the pieces to stand while waiting to set the icing, I was wedging with mugs weighted down, . DC were bored by now .
Then they let loose with icing and sweets .( kitchen table now looks like a bombsite )
It was "interesting" .
Then it sat there , being demolished bit by bit looking sadder .
As I said , did it once 
I think I;d buy the kit and extra sweets that you;d like . Jelly tots , silver balls , candy canes , Jazzies