C.T.
Something special from the baby after she's born, we did this with mine-although my 'big sister' was only 26 months and she really thought it was from her baby sister. I'd say just something that he really wants-a camera is a great idea too, not just for pics of his baby sister, but his birthday party etc... I don't know if he would be interested, but he could also help pick out some things for the baby-an outfit from big brother or a toy-I don't have boys, but I know my girls would be all over that! Best wishes-hope all goes well!