16 Cards

A medley of ideas, with no apparent link,
But at least I get sit and think:
"Two cards for playing cards,
two more for playing cards,
And one for where to find the game back in 60.

Two seem to be torn, never again known by man,
And one looks as though it belonged to a Texan fan.
One I can't make out,
and to the other, I smile too;
Two halves of a circle, and the Son with His sheep."

At the end of it all, I still don't see a link,
But at least I got to sit and think.