I almost always use this vase (by Finnish designer & architect Alvar Aalto) because it allows for a minimal flower arrangement. It's my favorite vase because the shape of the vase can stand alone as a decorative piece even without flowers. So placing a lot of flowers in the vase would cover its beautiful and interesting design.
These cute flowers are called "Button Mums". I usually put Gerbera Daisies in this vase but they look too spring/summer. But I found these cute chrysanthemums with a nice golden yellow color, more appropriate for autumn.