Dunno, I've never seen one

I did have a couple of friends who looked at the material (don't know brand or anything) and commented that the holes seemed pretty big... how's that for high quality information ?

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8