OK here's the tut for making flames. I found it on youtube but the video was horrible, though I must appologize when I was making this I found that my camera battery was dead and had to use my wife's which doesn't have the best Macro setting.
Anyway the main thing you need is the subject you will be putting the flame on (in this case a self made torch handle), your apoxy or GS, and angled tip tweezers. You can use straight tipped ones but the angled tip ones are a bit easier to manipulate the putty and honestly are more comfortable to do as well:
You can also have your sculpting tools, or your hobby knife, near the end to help define the flames.
Roll your putty in a tear shape and apply the thickest piece to where the 'source' of the fire is. Make sure it is firmly attached beacuse you will be 'pulling' the putty a bit. Have the tip of your teardrop pointing the way you are wanting the fire to go (on this piece it is at an angle from the torch because the model will be holding it low). The with your tweezers, pinch the putty. at the base of the licks of flames don't pinch as hard as at the top. Make random curves like so:
Dont just go from bottom to top, start some of your flames in the middle or near the top. Repeat this process several times over and over, even pulling some of the upper parts of the licks of flame away from the main base to give them an organic feel:
Then using one of the blades of your tweezers (or your sculpting tools or knife) add texture to your flames, maybe having two become one or vice versa, or add variable depth to the main body of flame:
In the end the finished piece should look like thisL
Feel free to ask any questions, sometimes I don't explain things well enough.