Most everyone has seen the advertisements for the milk promotion ads that feature people sporting milk mustaches. Try giving the idea a spooky, yet humorous twist by taking a picture of children dressed as ghosts, with "Got Ghosts?" written on the front of the card. The play on pop culture will be a hit with the recipient.
If dad wears a suit and tie to work or has a favorite pair of pajamas for lounging around the house, dress the whole family in matching outfits to look just like dad. Complete the look with a fake mustache or beard if dad has one. Snap a picture of the group dressed up in Dad's honor to grace the cover of the card. This will be a funny and heartfelt gift any dad would treasure. Use the same concept for holidays such as Mother's Day or Grandparent's Day.
Put a spin on the old 70s show "The Brady Bunch." Dress up friends, family or co-workers in their holiday best and stack their pictures in the same photo grids that made the Brady's famous, but with a twist. Instead of "The Brady Bunch" written across the front of the card, try something funny like "The Naughty Bunch".