My sister is having her 50th birthday.Her children are taking her out to dinner and then returning to her home where the rest of the family and some friends will surprise her. I am in charge of decorations. We don't want to do anything with black balloons or age related themes. Her children told me to just keep it simple so any suggestions would be appreciated. I am not that talented so simple works for me. The cake will have some fresh fall flowers on it. Also, your input is needed on this. We will be serving cake and coffee and possibly some punch. This will be around 7 at night so I would assume most would have eaten dinner. But, should we have some other sort of snacks? And should we have ice cream? The cake will be like a wedding cake (not shaped, but the same flavor)and you don't normally have ice cream with that so we are unsure. Thanks.