咖啡卡券收藏家俱樂部(Coffee Cards & Coupons Collectors Club，簡稱C5)，歡慶成立二週年活動，配合南部熊團發行明信片。
Facebook group "Coffee Cards & Coupons Collectors Club, C5" issued his
membership cards of 2018 in the events for celebrating the 2nd anniversary of C5.
Together with Bearista group at Southern Taiwan, groups
collaborated meeting, a post card was issued as shown.