The Christmas season is over, but I found an LotR version of that perennial holiday favorite - gingerbread/candy house - that a fan and friends created:
The Battle of Helm's Deep! The site shows pictures of a wonderfully quirky work of sub-creativity - and doesn't it look yummy too!

(That's me fantasizing about helping to "dispose" of it afterwards - though it would be a shame to destroy such a fantastic scenario!)
Oh, and here's more:
LotR Desserts...
__________________
'Mercy!' cried Gandalf. 'If the giving of information is to be the cure of your inquisitiveness, I shall spend all the rest of my days in answering you. What more do you want to know?' 'The whole history of Middle-earth..
.'