The one that was hosted for me had a sheet called "Wishes for Baby" (see:
http://img1.etsystatic.com/000/0/5416009/il_fullxfull.253654525.jpg)
People filled out the sheet and then read aloud what they wrote. I loved that. Some other silly game was which traits Mom wanted the baby to get from her vs. Dad. That was cute.
I also went to a shower where everyone decorated onesies and that was really fun for me as a guest. And I love the journal idea.
Forget the melted chocolate and baby food tastings. That's just gross and stupid. Do things that are meaningful - that make the event a rite of passage for the new mom.