BlackBerry launches BBM Sticker Factory for artists who want to reach a wider audience

At the same time, these contests gave many artists the opportunity to show their work to a wider audience. Since the BBM sticker contests have been so popular among artists, BlackBerry has decided to keep one going all year long.
Moreover, BlackBerry announced that at the end of each month, it would offer prices to the creators of the top five most popular sticker packs. Among these awarded prizes, the Canadian company offers a chance to share in the sales of the stickers.
In order to submit your sticker(s), you need to create an account on the BBM Sticker Factory portal, but you don't need to have a BBM account. Also, participation is free of charge, and you can submit as many sticker packs as you want.
source: BlackBerry, BBM Sticker Factory
Things that are NOT allowed: