Pogo is advertising a Mix-n-Match Badge Sale (10 re-released Mix-n-Match Badges + 5 re-released Premium Badge Albums). They are not on sale yet, but keep an eye on the page below for when the sale starts.
http://www.pogo.com/challenge/find-badge.do?tab=newrelease&sortName=released&sortDirection=false&intcmp=c_hp_sl_bftv_mnm&pageSection=cp_home_spotlight