You can see all stickers here.
This one of those log in once a day things?
Steam changed sale link, working link:
ps - Looks like it resets at 1pm EST each day.
Nod nod. That’s right. Thanks @markwr. Purr
Why is this one so hard to get to through the steam client?
I have only once seen a banner for it on the steam store front, it’s not even hidden in any of the usual carousel features. I have to go to sales and event news, scroll down through a list of newer news, past the namco bandai lunar new years sale event to find a news post about it which includes a link to the actual sale site in order to claim these things.
Red envelope. Cha ching! Thanks @GeekInUndies XD.