Puzzle pieces.
((OOC: YEP! It's exactly what you think it is. There are holes just for you! And on the other side~ well. You'll just have to climb in and find out, huh?
ETA: Hrrr right link!
This is the phenomenon that is occuring, though a waring that it's by Ito and if you are like me and scare easily, the holes totally lead to bunnies and rainbows and cake. Rly.
ETA2: auuuugh can't stay up anymore so I am passing out and will pick up my threads in the morning, but I think a lot of people are still awake and playing SO HAVE FUN))