This is for absolutely any occasion at all…
Get 20 friends of yours to sms the special person for his/her special occasion, at different times of the day.
Let all these 20 be people whom the special person doesn’t know!!
Extend the surprise…arrange for each person messaging the special person to send the message to you as well…and each time you get a message, give a little gift (flowers…chocolates…pastries…or anything else of your choice) to the special person.
Of course…can be done with fewer or more than 20 people as well.. 