I believe you can use a conductive spray film on the standard plastic caps to make then ESDS capable. Do not know off hand what the spray is.
Cardboard should be OK if it were double sided enclosed with ESD tape.
Just found this link to a product
http://www.aclstaticide.com/01/produ.../6500lit08.pdf
MSDS Info
http://www.aclstaticide.com/01/produ...300msds_07.pdf
Last edited by Short_Circuit; 13th Feb 2009 at 01:04.
Reason: Product link