Originally Posted by JohnnyL
I'd possibly look into spray painting them with a satin/semi-gloss base paint (beige in color) and then use a dark-brown/gray wood stain on them (use an old rag to rub it on them and whip it off).
The pipes began as black pvc and were then spraypainted white with Kilz primer. Then I did the hot glue "wax" treatment. I had actually done the drips and then painted it, but it didn't look realistic enough for me. The gloss of the glue has the realism that I'm looking for.
I was thinking about getting some sort of stain and a spray bottle of water to see if I could get the stain to run. Does that sound like it might work to you?
Unfortunately I have not been able to find any good tutorials online for weathering fake candles.
Thanks to everyone for their help though!