I found these 6 about 8 or 9 months ago and have been using them since. I switch between them whenever I feel like it.
I'd link the original source, but I really can't recall where exactly I found it... I'll see if I can find it.
<spoiler=Applejack>http://img826.imageshack.us/img826/4375/mlpapplejackbysmock.jpg
<spoiler=Fluttershy>http://img600.imageshack.us/img600/2221/mlpfluttershybysmock.jpg
<spoiler=Pinkie>http://img525.imageshack.us/img525/8129/mlppinkiepiebysmock.jpg
<spoiler=Dashie>http://img513.imageshack.us/img513/4629/mlprainbowdashbysmock.jpg
<spoiler=Rarity>http://img42.imageshack.us/img42/4265/mlpraritybysmock.jpg
<spoiler=Twilight>http://img269.imageshack.us/img269/8773/mlptwilightsparklebysmo.jpg
Edit: fixed the links so they actually work now /facepalm