I have seen in other posts that some people pick out one item and give that gift to every kid who has a birthday party in that age range. We're coming up to the 3 months where all of DS1 and his friends will be turning 5 and I know we'll be at birthday parties every weekend from September through November. I would love to just stock up on something and give that to each kid. Any ideas? I was thinking about something like a science kit but haven't found a good one.