Gray Mandorla Manifest is a procedural group mail art exhibition that includes works that were mainly sent by mail especially for the opening day of Sergey Shabohin's studio. All the works were donated and immediately formed into a common collection of the same name with the exhibition.

At its core, this project is an experiment in which Sergey Shabohin invited his colleagues from different countries, with some of whom he collaborated, got acquainted in the framework of various trips and events, and monitors their activities with interest. He created a large list of  artists and sent them a mailing list inviting them to participate in the project. In his address, he emphasized that this project is a symbolic reflection of the community of artists, and how, using the example of contacts of one of the members of this community, one can dynamically create a certain section of Eastern European art based on friendly and professional ties.

Since Sergey Shabohin called his workshop Gray Mandorla Studio, he asked colleagues to send their works in one way or another related to the concept of space: images of the figure of a mandorla, the Plato's cave, the workshop as a refuge and a den, the sexual connotations of a pit-womb (Utrobata), a valve-breathing-speaking system, holes and gaps in history and other symbols of holes that in one form or another can be found in the activities of any artist.

The exhibition is a procedural one: many works will appear in the exposition after the opening, and the exposition can be transformed. The description of each work will also appear on a special website during the project. At the end, a film will be prepared, and by the closing day, a special box has been designed for storing and transporting the collection.