Celebrate National Nurses Day on May 6. If you know a nurse, are a nurse or have ever needed a nurse, you'll enjoy these greeting cards by Tom Rent. Tom writes hilarious captions on vintage photographs. Have a look. If you want to send one of these charming and funny cards to cheer and honor your favorite nurses just click on a card. You'll go to Greeting Card Universe, which will show you card details, including how to purchase one of Tom's cards.