Codes from twitter that grant bucks or special items.
Why should we have promotion Codes?
Not everyone has enough bucks to buy items or customize their avatar. Promotion codes would change this and give their avatar a new style!
How would these be redeemed?
Via Twitter or maybe given out on site.
How would they be created?
Staff or the CEO would create the promotion code. This can be for example, them posting a promo code for the egg hunt for example EG4LIFE

They're not that kind to do that