Since this thread makes for a good depository for Looney Tunes paper props, here is my AI-enlarged Wile E. Coyote business card:
It is surprisingly accurate to real business card dimensions without modification!
It is a little irregular (which is a good thing), so I printed it on card stock, cut it manually, reinforced the borders with a fine-tip pen, and then ran a Sharpie over the edges. And added some holes for Wile E.'s claws: