For everyone who sends Myself or Astral Rain a PM before December 12th, containing links to the leaves they found, we'll verify them and then pass out prizes accordingly. Anyone who participates has a choice of receiving:

Farfetch'd
Lv . 5
Hp. 40
Peck- 20
Sand Attack- 5
Leer- 5
Fury Cutter- 10
or

Spoink
Lv. 5
Hp. 40
Splash- No Effect
These are consolation prizes so everyone has the option of receiving one. You don't have to take them if you don't want, though.
Other prizes are:
5 leaves: Fresh Water x5
10 leaves: TM14-Blizzard x1
15 leaves: Rare Candy x2
20 leaves: 1 shiny Grass type{your choice}*Lv 10*
25 leaves: Ultra Ball x 10
30 leaves: 1 Ice Type{your choice}*Lv 10*
40 leaves: Master Ball x1, Rare Candy x 3, 1 Shiny Pokemon{your choice} *lv 10*
50 leaves: Nanny Chansey{Secret Base Special Item}
Ok, explanation in due part here. The Nanny Chansey is a special item for the Secret Base system once it's been fully completed. This item can only be received by winning a contest and allows the Secret Base of the owner to be used as a Day Care for a short period of time.
Now, the highest prize you are eligible to receive isn't all you'll get. If you find, say, 25 leaves, you'll get the Ultra Balls, Grass Type, Rare Candies, TM and Fresh Water. Likewise, if you found only 5, you'd only get the Fresh Water. So obviously, the best possible scenario here, is to find all 50 leaves.
As a final note, the leaves won't be more than ten pages into any given thread, from beginning or end, and there could be several in the same thread. Meaning, you could find 1 leaf in the first ten and two more in the last ten if you looked carefully enough. And if a leaf is in a rp thread, it will be found equipped to a Pokemon in someone's post.
Now this is what you're looking for:

Small, yes? That means look carefully. Good luck!