This article investigates the role of play and playlike activities (imagination, art) in developing and using symbolic tools. We understand processes of development of symbolic tools as coordination between two types of relationships: the subject-object relationships and the subject-subject relationships. This coordination begins when a new, playlike frame of activity is introduced in the interaction. The imaginary frame of activity changes relationships between the participants. Furthermore, the imaginary activity frame may enter into interaction with the out-of-play activity frames ("reality" frames). Structures and relationships built within the imaginary frames are then used to shape the actual understanding of the world (subject-object relationship) as well as the interpersonal relationships and identities of the participants. Introduction and further development of imaginary frames is a recursive process that takes place on different but related time scales: from microdevelopment through ontogenetic development to cultural development. Our project was designed to demonstrate some of the key moments that occur in the symbolic construction, in an "untangled" manner. To that effect, we designed a drama workshop to outline and illustrate processes that take place at the point of introduction of a new, imaginary frame and at the point when this imaginary frame begins to interact with the out-of-play frames. The aim of the workshop was to magnify each stage in construction of semiotic tools by "walking" professional researchers through a series of playlike activities. (Contains 8 figures and 10 footnotes.)