Washable fabric glue serves to adhere cloth to cloth or other materials, creating a bond resistant to washing. The strength of this bond isn't equivalent to stitching the pieces together, so it requires the use of milder washing and drying techniques.
Working with washable fabric glue may be less technically demanding than sewing by hand. Some manufacturers offer nontoxic fabric glues suitable for use by supervised children. Using glue also helps to attach materials that can't be pierced by a needle, such as glass rhinestones. However, the connection needs to dry for several hours before use.
Washable fabric glue is suitable for many projects, such as making personalized T-shirts.