I found this list on tumblr and since I don't have time to get fancy, the list will do (I hope)
Give me a number between 1 and 60 (or more than one if you're daring), and I'll provide you with a potentially nsfw starter...
Now there's no reason you can't turn a nsfw bit into something totally safe for work...in fact, that might make it extra challenging.
Let's see what ya'll can do between now and Thursday ;)