Is there an alternative way to get the positivity posters (without Mod or Cheat)

I downloaded all my collections from the gallery and made stores that sell them, mostly because I've manually completed many of the collections many times. I'll do collecting again, but where I am right now completing them is a chore. Also my sims like traveling and shopping and visiting different stores to get things. I agree with you, why is the collection still in the game if it can't be completed through normal gameplay? I didn't know it wasn't part of normal gameplay anymore, I just thought it was part of a pack I didn't own.