If you don't know too much about the person, but you know their birth date then you can still make a collage all about them! Consider birthday card ideas using their zodiac sign, precious stone for the month of their birthday, and if you know the year they were born you could also include their Chinese zodiac sign. If you still need some filler space, then find out some interesting facts related to their zodiac sign and print or write them on the front of the card. Everybody loves to read what they're all about and it could be a fun conversation piece so you can get to know the person better!
For instance, if their favorite color is yellow _ start cutting out images sun, flowers, bananas, and anything yellow from your old magazines, calendars, wrapping paper, and other media. Collect all of your yellow images and glue them onto the front of a white, black, or colored card that contrasts with the color used in the collage. Now use a circular or square piece of colored cardstock and write "Have a Very Yellow Birthday!" This is a fun way to celebrate the individual and a unique way to show your own thoughtfulness and creativity.