Sprinkle

The 'Sprinkle' essentially allows you to draw a polyline and while you are drawing it it places blocks around it. With the width option you can determine how far from the polyline the blocks can be placed. The distance option let's you determine how much space there should be between blocks. The ratio determines how much blocks are placed per unit of polyline. The higher you set this value the more blocks the command will place. The blocks by default are grouped. While picking the points for the polyline you can determine if you want to draw straight or curved segments. If you're not happy with the last segment you can undo it. After finishing the command the polyline will disappear and you have randomly placed blocks left.