In the Winter time you should find a way to turn the tower in to a winter wonder land, with everyone having an unlimited number of snowballs. They wont hurt bit it would just be a fun way to mess about in a snowing tower. Instead of pointing to a player you throw a snowball in the direction you point.
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They would have to install a massive update for this and recode much of the game i like the idea but wouldnt work :/