Originally Posted by
Lemur
All you need is a candle/oil lamp and a plastic straw if you want to go all MacGyver over it.
Melt the tip of the straw so you only get a very small hole, when you blow at your hand with it it should tickle.
You can now use that thin air flow to blow thru the flame of the candle, when you do it right you will get a blue pointy flame.
Hold the pin you want to anneal with an old tweezer or such.
I fused a wedding ring at the local pub like that, cleaned it in boiling water and baking soda, held it with a snail plier, the whole pub gathered around to see.