If you haven't already, please see the preceding articles on making trading cards at home:
DIY Trading Cards, Part 1
DIY Trading Cards, Part 2: Making it Physical

Now that you have mastered the art of making a standard card, you are ready to add some flair. I created some specialty cards, and here are my howtos:
DIY Trading Cards, Part 3a: Hologram Cards
DIY Trading Cards, Part 3b: Memorabilia Cards
DIY Trading Cards, Part 3c: Puzzle Cards

Next up: DIY Trading Cards, Part 4: Packs