Medallion of Twenty One Pilot's current logo. The border is a perfect ellipse, although the original is not. This is for beautify it when 3D printed, because curvature changes may be visible.

The logo resembles greek letter psi, which is the 6th in the alphabet, probably a reference for their sixth album, Scaled and Icy. It can also be seen in some Dema maps marking the east, but pointing up ("east is up", as stated in the song Nico and the Niners).