Well, I have done this twice recently. Last week we had a really short french essay about either some important person or our own relationship with computers. I did about a person, I'm sure you never guess who.
(I admit, that computer-thing could have been interesting too...
)
I also had a project work in Finnish. There was no limits to the topic, except it was to be a fact text. (sp?) I did it about the story of
Sir Gawain and the Green Knight (been intrigued by it for a while now), and you can guess 100 times whose translation of it did I use.
A long time ago we had to write about our favourite object (in the English lessons) and I wrote about my old, finnish copy of LotR.
That's all of it, I guess.