Scp-035, along with the examples of hosts he can possess. From

SCP-035 The Possessive Mask (SCP Animation) SCP 035 is an anomaly also known as The Possessive Mask. SCP-035 appears to be a white porcelain comedy mask, although, at times, it will

Example from a Straight Crossing Path (SCP) crash: The host car is

Steam Workshop::SCP-035

SCP-035 song (extended version) (Possessive Mask)

Steam Workshop::SCP-035

Our DM trying to simplify puzzles to a new degree. : r/dndmemes

SCP-035 - Official SCP - Containment Breach Wiki

Possessed By Mask SCP-035 & SCP-173, SCP-1048, SCP-049, SCP-1498

EAS Scenario, SCP-035 The Possessive Mask

SCP 035 Plush the Mask Containment Breach Kawaii Horror - Israel

SCP-035 [SCP-Containment Failure EP.1] l SCP Animation

SCP 035 Maskgreek Comedy tragedy Maskstheater

What do you think would happen if SCP-035 was placed on SCP-682? - Quora

SCP-035 has breached its containment and this is the first thing the MTF sees. I would run away screaming. Hope you like it. : r/SCP

SCP-035, Wiki