Crafting Tip: When brainstorming birthday card ideas using the collage technique with different media you may run into the problem of "filling out" the entire collage. To alleviate this issue, consider using patterned paper as the background of the collage to fill in any blank spaces ahead of time. Or use a repetitive signature piece of art of fill in the blanks, such as stars, colored buttons, hearts, happy faces, and other embellishments.
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.