Give them some booties with a little swing tag note hanging from them? My SIL told BIL when they went out for dinner and I think from memory she wrote a poem. Give them the pregnancy test stick thing?? lol...could be taken as gross though. If I think of anything more I'll come back to you before Thurs night

Oh oh just thought of another (thought I'd just edit and tag on here)...you could get little goblets, nice keyring or something of the sort and engrave Nan/Pop, Grandma/Grandpa (whatever they'll be called) onto them.