To date there is certainly no shortage of Sticker Packs you can purchase for BBM. In fact, BBM stickers seem to be doing much better than I thought they would – packs are being added constantly, and (unofficial) sales are fantastic.
If you don’t want to pony up the $0.99 or $1.99 in some cases, there are a few free sticker packs you can add to your collection. These have been released mainly from events happening at the time, and some just for good faith(?).
These links are optimized to be opened from your Blackberry or mobile device.
I’m pretty sure that’s it, but if you happen to find more – please comment.