Dubbed the ONE and created by South Korean designer Jeong Yong, this table calendar uses three rings of various sizes to keep track of the date. The largest ring is printed with numbers ranging from 1 to 31 around the circumference, denoting the days of the month, while the next ring is numbered to 12 for each of the months. Finally, the smallest ring is printed with the days of the week. Held together by magnets, the rings can be configured to indicate the date and day of the week, embodying the notion of time as a circular construct. Check out more looks in the gallery below.