Hearthpwn

This is the budget deck I created for players who are new to this game. 

Cards I used are cheap to craft and almost all are useful in the other decks. With this deck, new players will learn how to combo ( Devilsaur Egg + Sanguine Reveler ),
about taunts, deathrattles, battlecries, etc.. And, as I said I used cheap cards (only 4 rares, other cards are common or basic).

Zoolock is easy deck to play, so it's new player friendly. You play almost the same way against aggresive and control decks. You always want to have board control, and that's easy to do with a lot of cheap minions.

Mulligan:
Possesed Villager [/card] or [card]Fire Fly

Dire Wolf Alpha

Tar Creeper

Tips and combos:
-Always protect your Vicious Fledgling , 50% of the time you will win with it.
- Devilsaur Egg + Sanguine Reveler or Ravenous Pterrodax is a good way to pull out a strong minions for a cheap price.
-You can also ''eat'' [Possesed Villager] with Sanguine Reveler or Ravenous Pterrodax if you don't have that egg, it's still a good trade.
...
I will write more of these if I'm you guys want or if this deck becomes popular.

Replacement:
-If you have Prince Keleseth you can put him and throw out all of the other 2 cost cards. It's worth it.
-If you have Defender of Argus , put him instead of Shattered Sun Cleric .
- Dire Wolf Alpha for Leeroy Jankins [/card].
- [card]Sea Giant is a good card for this deck. instead of Bilefin Tidehunter, and If you have two remove anz combination of the 2 cost cards.

Finally, a word of advice:
When you have enough dust, build a control deck. You'll have more fun this way. I suggest a Control Warlock. It's not that strong, but trust me, you'll have a blast. And If you switch to WILD you'll have a good portion of cards for a Renolock or any other 'lock deck.