So I tend to sketch out characters or creatures from the Pathfinder (Dungeons and Dragons 3.75) game I run. I am not awesome by an means (very amateur actually lol, need a LOT more practice), but they tend to be good illustrations of what the party is facing and drawing them is a fun diversion from staring at a computer screen all day .
Here are a couple I grabbed at random...
This one happens to be a goblin alchemist I played when a friend took a turn as DM for our group a couple of months back.
And this is of a psychotic, death-god worshiping, clean-shaven, non-drinking, dwarven monk NPC traveling with the party in the current game: