I don't recall where I saw the idea I think it was one of Michael's workshops or it could have been in a magazine anyway - I can't claim it as my craftiness!
hot glue gun
cone shaped styrofoam or I found these cardboard ones at Michael's (less mess)
cut ribbon in approx. 2" strips
fold over and put a little hot glue at one of the ends to hold the loop
put a dot of hot glue at the base of your cone and start attaching the ribbon loops and work your way up