Cards for men and boys are one of my biggest challenges. But the most difficult are for teenage boys. You've got to keep the card interesting without making it too "cutesy". And I've never raised a son, so I'm not quite attuned to what they like or find "cool". Considering my confusion, I've learned to keep it simple without making it look like I didn't try at all. Two things I turn to again and again are embossing folders and fancy (yet masculine) paper.
For this card I used the Cuttlebug embossing folder Diamond Plate to emboss a metallic sheet of paper. I chose patterned paper that included silver stars, then cut the number 13 from grungepaper and painted it silver to match.
The most rewarding part of this project is that it went to a wonderful young man who always appreciates my handmade cards. And that makes it all worthwhile.