A friend has asked me to work up a basic RPG as a holiday gift for his young son, who he wishes to introduce to P&P role-playing along with some other kids. It'll be a sort of 'Hardy Boys' or 'Scooby' mystery-solving theme. Anyway, for some images for other games I've been using the Champions Online editor and taking screenshots. I thought something like this would be perfect for NPC portraits, but I can't seem to find any editors that feature child characters.

Anyone know of any? I'd really not like to get into 3D modeling software just over a few generic pictures.