Are you playing Pokémon Black & White?
KayJarBee Flickr photostream has an astonishing Target-exclusive Art Folio which contains 15 art cards inside a small cardboard box.
The images of Reshiram and Zekrom are embossed like you would see on a DVD or Blu-ray slipcover. The cards slide out of the right side of the box for easy access.
The layout of the cards is as follows:
*2 scenery cards
*2 legendary cards (Reshiram, Zekrom)
*2 trainer cards (with starters)
*1 gym card (with elemental monkeys)
*3 starter cards (mid-evolutions)
*3 Pokémon cards (Deerling, Musharna, Reuniclus/Gothitelle)
*2 special art cards (Musical, Dream World)
Each card has a special description on the back.