Here is one of the first dragons that Liam came up with.
I am releasing the following text as Open under the Open Gaming License.
Turquoise Dragon is copyright 2011, Liam Brannan
Armor Class: 0 
Hit Dice: 10d8+5** (50 hp)
No. of Attacks: Claw (x2), Bite
Damage: 1d6 / 1d6 / 5d6
Special: Breath weapons, special
Movement: 90' (30') / Fly 180' (60').
No. Appearing: 1 or mated pair (2)
Saves As: Fighter 10
Treasure: As a Blue Dragon
Turquoise dragons are a very old breed of dragon and many are no longer seen these days. Due to their coloration they are often confused at a distance with blue dragons. Though the turquoise dragon is not evil and sometimes found in the company of a gold dragon, whom they consider friends.
Turquoise dragons coloration begins as a pale green as a wrymling, deepening in blues till it's ancient adulthood. They have long serpent like bodies with great fan like wings. Their tails are spiked and they have overly large incisors. The female turquoise dragon fangs can produce poison when she protecting her young. The poison causes weakness and sleep (failed save). Unless magical means are used the victim suffers a burning fever that last a number of days equal to 20 minus their CON score. The females have smaller teeth.
The breath weapon of the turquoise dragon is a bright spark they “cough” up. The spark flies forward towards their target and on contact explodes. The damage of blast is similar to that of a fireball at 10d6 points of damage, save vs Breath Weapon for half. The spark may travel up to 90' in a straight line.
They find their homes on great plains and other area where plant life and plant eating herd animals are plenty. They will sometimes swoop down on cattle and carry one off to eat. Turquoise are not malicious, merely hungry. If they know certain cattle belong to humans or demi-humans then they will leave that cattle alone.
Despite this farmers enjoy having a turquoise dragon around since the scare away other predators and the action of their wings flapping is rumored to cause storms.
Turquoise Dragons may cast the following levels of Wizard (Magic-user) spells, 5 (1st level), 4 (2nd level) and 4 (3rd level).