The popularization of ecology and environmental awareness in the world has led to the integration of ecology into all areas of human activity. Ecological habits are acquired from an early age, which is why ecology is integrated into the basic documents for planning the upbringing and education of children. A child's encounter with nature begins in the family, and the education system plays an important role in acquiring knowledge for nature, environmental protection and sustainable development. Environmental activities should be carried out already in preschool education. The paper explains and presents art techniques in which waste materials are used, and works of art created by world-famous artists who worked with these techniques were selected. The use of waste materials in fine art began in the period of synthetic cubism when artists invented collage. This painting technique later attracted artists of Dadaism and Surrealism for its incredibly provocative combinations (Arnason, 2003). The artists of Dadaism denied all artistic criteria and advocated the absurd and exhibited finished industrial products as their signed works for which they use the term "ready made". Waste material collected in early childhood education institutions is called didactic unformed material. The richness of waste materials in shapes, textures and colors contribute to children's creativity and development of their imagination. By searching for discarded material, exploring its form, quality, characteristics and technical possibilities, merging and finally composing it into a work encourages creativity. When using discarded material for research in the field of fine arts, the ecological value of reusing that material should also be emphasized. The aim of this paper is to show the possibilities of artistic utilization of waste materials by using art techniques collage and assemblage in early and preschool education institution with the expansion of knowledge about recycling and the development of children's environmental sensitivity.