What you'll need:
Foam Cone - I got mine at joanns in the floral section, I think it was around $5
A few packs of Christmas ornaments - I got two different sizes, I think I used about 2.5 packs of each size, The ornament packs were from the dollar store
Gold Star - Also from the dollar store
Hot glue gun - on hand
I always forget to take pictures before I start these projects but here is one during and the finished product
Pretty much I just shoved the top of the ornament into the cone and hot glued it in. I did one row at a time and made sure the ornaments fit well around the cone before I glued them in.
The green of the cone shows up a lot more in the photos than in real life...
Project total: about $12