I wouldn't count anything out unless it was outrageous or ridiculous. Your suggestion is far from that. I have seen the patterns that particles of matter (metal shavings, dust, whatever) make when they react to vibrations made by sound.
I helped out at a Disco for the deaf once...I know, sounds silly but the DJ knew his stuff and placed his speakers face down on the floor of the ballroom. The floor vibrated and the deaf people danced their hearts out. I noticed how the dust in the room formed patterns on the floor around the speakers.
Maybe the noise/vibration from whatever the builders of Solomon's temple were using, caused similar patterns to form and these were described as 'serpents'.