Ok, so this is the first dream that I can remember in like... forever.
So I was in class at some school that seemed similar to mine, but the layout very clearly wasn't that of my school. And I guess we were taking a test or something, the room was very quiet and I was in the back of the room doing something and I guess I was done so I got some pieces poster board, I'm very sure it was six. I was unsure as to whether the teacher would allow me to do this or what, and then it seemed like suddenly I was outside. I had a roll of tape, you know the dull yellow type? And there were large sketches on the poster board, the Mane 6 to be exact. I then proceeded to hang them up all next to each other, with each deviating from an average height from the ground by a few inches. And then it seemed like there was some girl talking to me. I have no idea what we were talking about, but she was there, and we were talking. By the time I had finished hanging the poster board up, I told her we should probably go get our backpacks. I have no clue how I knew it was time to go, but apparently it was. And even then school hadn't just got out, it had been out for minutes, like the time had skipped all of a sudden. So I went back to get my backpack and there were people and the doors all auto-locked for some reason if the doors shut after school hours, so the few that were still in the hallways (there was around maybe 5 others) had to wait at the doors and hold them open. The girl said something like "This is going to take too long" jokingly like she knew me as the person that takes forever, and I got my backpack, and then told her something about that it didn't take long and I left. I met one of my old friends and began to talk to him about irrelevant stuff and then the dream ended.
I tried to go in to detail on some things because I am trying to improve dream recall.
And the only sketch that I can remember how it looks was the Rarity one (like I can picture the scene in my head right now). But I know that they were all the Mane 6. Or maybe they weren't and that's my mind playing tricks on me.