Sigils, what to make them out of Options

Hi, me again. I jus need help with one last thing. I got all the tools I need to conjure Ose (he wont be the first, vassago will). Im looking at the metals to make sigils out of for certian demons, and Ose is mercury. Does any1 know where I can get sum mercury, does it even have to be made of mercury?

thanks

chaoscrowley37 hint is enough to give you a temperature rise (IMG:style_emoticons/default/rolleyes.gif)

If you must use Mercury may I suggest you first draw the spirits sigil into new wax, then fill the sigil which you have scratched out of the wax with mercury. Then cover the wax with either a glass or clear plastic disc, square etc whichever is easier.

You may find it easier to draw the sigil with sympathetic ink onto genuine vellum or parchment.