Will the RSVPs be to your friend? If so maybe give her the list of suggestions and then when someone RSVPs and asks her what you might like, she'd have a list to go off and she can tell each person that asks one or two different things on the list.
This is sort of what we have done. My sister and I hand made some lovely invited with mums phone number for regrets only. She knows the small things that I still need for bub so when people ask she can just suggest those things. It's things like singlets, burping cloths, change table supplies etc just little things so people don't feel put out.
We also aren't having games. I have been to baby showers and although it's great to see the mum to be having a fun time, it's not my thing. So we are just having a food and wine afternoon with family and about 2 friends. We are also doing a little lolly bag equivalent for everyone since there is no games to win a little something. It will probably just have some chocolate and a nice hand lotion or something similar and a little thankyou poem.