Ordinarily, the answer would most definitely be no. However, the holidays can be a very difficult time of the year for activity, so we are thinking we might allow it this one time. There would be the following caveats, however:
Only two of your threads can be on the same post. The third thread must be on a different post. And this is still true only of the major event posts; your own posts, you can still only take one thread each from.
You will not be allowed to have all three threads from the mistletoe bot and the yule ball posts. (In other words: if you link to two threads on the yule ball post, your third thread cannot be on the mistletoe post.)