AB F Key inserts

I am looking for something to print on that can be inserted into AB PanelView F keys. We had 8.5 x 11 sheets of plastic that worked in laser jet printer. I have excel spread sheets with all the correct sizing, just type in the text, print and cut out. Our supply of this stuff is gone. I found in the stuff in dusty box in supply closet. The pages are like the transparencies you use for overhead projectors but instead of clear they were white. I have been to Office Max, Staples and places like that but came up empty. Any help out there.

GO JETS