I was wondering what everyone is using for a table on your laser?

I was wondering what everyone is using for a table on your laser? When cutting and the beam completely penetrates your material striking the table I would like something that is non reflective and can absorb the power of the laser without damage. Any suggestions?

Great! I have some of that in the ol’ handy scrap pile. Thank you

White cork? My diode can not cut it.

I use an old cement shingle/siding like they put on old houses lol. Works well for me