Boy, I find cards for my husband difficult! It's not that he's fussy - but he just lives and breathes Maths! Fortunately, he also loves music and one of his fav bands/albums is U2's Joshua Tree - and what do you know?! I came across this digi-freebie by the maxi-talented Nikki of Melonheadz fame (http://melonheadzillustrating.blogspot.com/) In fact, the sentiment was one of hers, too. So thanks very much Nikki - he was tickled pink!