Create a Scalable Valentine's Day Heart
Bash: 16 characters
echo -e &quot;\u2665&quot;

output (when unicode supported)
♥

Ah wait, it must be an image?
ImageMagick: 137 characters
w=99
h=199
convert -size ${w}x$w -gravity center -font WebDings -fill red label:Y h.gif
convert h.gif -resize ${w}x$h\! h2.gif

output (when WebDings font installed)