All of my fire props are from Fire by Riz
Fire By Riz - Home - www.firewhip.com
I have also taken a workshop with the Flame Goddess, Lee
FlameGoddess Lee's Profile - tribe.net and she made some of her own.
There are a lot of online vendors for fire props - you may want to do a search for fire poi or fire fans and it should pull most of them up. Just off the top of my head:
Home of Poi - including Fire,Led and Glow twirling/juggling community
fire poi, fire toys and props, and fire dancing equipment from Luxotica
Firetoys - Fire Spinning & Circus Skills - Fire Poi, Fire Staff, Devilstick, Diabolo, Juggling Equipment, Glow Poi, Forums and much more
http://www.nwcircus.com
Bearclaw Manufacturing
Hope this helps!