Attractive motd (message of the day)

I’ve been looking for methods to broadcast message on the system (motd-message of the day) to all users on a particular server everytime they log on (in which the message must be as stand out as possible, otherwise the message of the day will be ignored!!). The motd that I’ve been broadcasting all the while does not really attract users and that delays some of my work. I use vi editor to write the message and broadcast it through system file (etc/motd). Is there any ways that I can make my message very attractive. For your information, I’m using the HP-UX Operating System version 10.20 and am using posix shell.

Pls advice.