Here’s how I made this card holder:

• Head to any of our Charlotte Region ReStores and look for a vent register in the home improvement section (I found mine at the Wilkinson ReStore). Look for registers that are wider, like one for a floor vent (with slots that are 5”-5½” wide). Narrower registers limit what you can store in them. 
• Once you have your vent register, use some craft glue (or super glue, or hot glue!) to close or shut any flaps on the bottom (if need be).
• Then, spray paint your vent register in the color of your choice! You certainly could paint it with craft paint, but getting inside the metal slots might be troublesome! 
• Once the paint was dry, I opted to protect my paint job with a clear topcoat. But this is definitely an optional step.
• Lastly, cut out a piece of felt or craft foam to glue to the underside of your register. This will prevent any sharp metal edges from scratching or scuffing a tabletop.
• Then, it’s time to put your vent register to work. I plan on storing greeting cards in mine, but you could use this for all sorts of paper items- business cards, seed packets, etc.