A colleague got them to do a film on a topic of their choice. Pro: pupils highly engaged and lots of creativity (the mock up apprentice in German was simply hilarious). Con: the language level wasn't as good and complex as could have been if the topic had been set. Most pupils used their mobile phones to film, as we don't yet own a camcorder (which is all about to change thanks to tesco vouchers, wooohooohooo!!). I like the "warning to the next classes" project - might pinch it for next year. Is your school twinned with another? Could you get them to write to their twinning companion, or do a little presentation about their school and upload it on a wiki? Another colleague got Y7 to research a francophone country and present their findings to the rest of the class. You could also go cross-curricular (food works a treat, I've done that with Y10 two years running, in a "come dine with me" style).