I use self adhesive plastic laminating sheets that I can get at any office supply store. If I can find a drawing or picture of the wrestler then I will use that as a second side to the bootleg stats. The sheets are 81/2 x 11 and I simply apply them to the four wrestler pages and cut the sheets to the size of the page once applied. If I need to mix and match then I simply apply the stat pieces individually, four to a page.
If I choose to apply a drawing or photo, then I usually print it out and hand cut it slightly smaller than the stat piece size and put four together on a page and lay the laminate sheet over them and cut them to size.
I've done probably around a hundred or more bootlegs that way.
I use Indesign and have a template set up. All my cards are layed out in Indesign so it is just copy & paste into the template. I print it on card stock front and back, 2 to a sheet (because of the margins like mft said).
My website devoted to pro-wrestling related newspaper & magazine articles from the early days of pro-wrestling through today: classicwrestlingarticles.wordpress.com - More than 2,100 Articles Posted!!!