"I can DO THIS!"
So, I bought the styrofoam cones (I used a 50% off on one, cuz I'm super cheap like that) and I got to work.
Then I hot glued the balls on starting from the bottom in rows.
Then I cut out a piece of felt the color of my balls, using a 4" diameter circle that I cut from my cricut. :) I use that machine for EVERYTHING.