The 12 Days of Christmas, Blockland Forums style. Do it like the song; for example, if one person puts 'On the first day of Christmas, my true love gave to me a partridge in a pear tree', and the next one wants to put 'Two turtledoves' they must write 'On the second day of Christmas, my true love gave to me two turtledoves and a partridge in a pear tree', etc. It can (and will, probably) go past 12 days.
I will start.
On the first day of Christmas, my true love gave to me a Blockland player ID.