Balloons in pool and floating from tables...too much?

So there is a pool overlooking a pond in our reception area. We will have round tables positioned around the pool for seating along with accenting stand up bistro tables for added standing table space. We have considered putting some weights/washers to some white balloons to float in the pool without them moving around too much or congregating to one area. I found a Pinterest idea of oversized white balloons as part of the table centerpiece decor, floating high enough to keep out if immediate line of view. I’m considering this as well since it’s all keeping within the balloon accent but I still want it simple. Does is sound too corny having balloons everywhere? I think it could be done elegantly but I don’t want it looking like a kids birthday party haha