One of the nicest decorative additions to any home, in my opinion, would definitely be carnival depression glass items. They come in all shapes, sizes and hues to go with any decor.
One might think that, because of their early era dating, they would only go with traditional, Victorian or country decors, but they also mix very nicely with ultra-modern decor as well. In my modern decor home, I use some carnival depression glass to spice things up in several rooms.
In the kitchen, I love my hens on nests and have a collection in several fabulous colors. My favorite is a dark blue carnival depression glass hen on nest that catches the light just right in the morning and shines just like a jewel.