Christmas Button Tree

Today I finished my Christmas Button Tree. I love it! I will absolutely be making more of these for each season/holiday that we celebrate.

Materials:
Styrofoam cone
pins with the pearls on the end (I used white for this tree, but I'm thinking pastels would look cute for Easter)
buttons of various sizes and colors

Then push a pin through one of the holes in the buttons, taking care to leave very little, if any, of the cone showing. 

Overlap buttons if necessary, alternating the colors and sizes.

I'm still deciding what to put on the top. I'm toying between a star button or some ribbon. Thoughts?