Board Thread:General Discussion/@comment-10773451-20130724175203/@comment-16245405-20131007062339

4th Year Party Hat will be this year October 24 2013. 5th Year Party hat will be rare October 24 2014 and 6 Anniversary hat will be rare October 24 2015. The 4th anniversary hat is very uncommon anyway and so also depends on how common it is.