you could buy one of those fake fire wallets and take the flaming parts off and put them on your helmet.... they only burn one side and have actual fire! just make sure no one touches it. and make sure the helmet isnt flammable. and wear a fire proof hood or something under it. just in case
idk what else is on that site that im going to link to, but its the only one i could find within 20 seconds. and im too lazy to find anything else.
http://www.vampfangs.com/Deluxe-Fire-Wallet-p/firewallet.htm