Whatever you do, make sure you open the presents at the party... I went to a shower recently where the girl got up after two hours and said she was going to open the presents later with her DH of we didn't mind... The silence was telling..... If DH wants to be involved in the unwrapping he needs to stay at the party.... The whole point is to see the presents

and I'd be hesitant about being too prescriptive on what people should buy, if you leave it open a bit you might get some lovely things you didn't know about or know you would need. And If you put suggestions you might end up with lots of the same thing.... But totally your call of course....!

The corny games might be more fun than you think btw

Been to some great parties with awesome baby themed food which is always a winner