This Gentle Hold glue is water-soluble, fabric-safe, and can be used in many different ways. Here I use it to pin my fabric together
Seam Align Glue, by Acorn Precision Piecing Products, is available at most quilting and sewing shops
The quilt in the background is in my book https://sewveryeasy.podia.com/hand-signed-copy-of-quilt-favorites-book and here is the video https://youtu.be/z_78C5bpdw0