"Standard Size" 6 Sided Dice (5mm, 8mm, 12mm and more)

After my first [30mm die design](http://www.thingiverse.com/thing:1359662) I decided that I would create 7 Dice that are all of 'standard' size.

- 5mm and 8mm: These dice are very small and generally used where you are rolling in a confined space.

- 12mm and 16mm: These sizes are the most common dice found in board games.

- 19mm: This is the size of dice used in Casinos around the world.

- 25mm and 50mm: These dice are less practical than their smaller siblings, they could be used as