The best classroom bulletin boards I have seen have a catchy title and show off the students' work.
Students always enjoy seeing their work displayed.
Let students select the work they want displayed on your bulletin board and once a week let them remove their displayed work from the previous week and let them put up their new work. This way your bulletin board is always current. This convenient monthly book provides 80 reproducible pages of ideas and activities centered around the themes, special dates, and holidays of the month.