This project uses a small leaf motif painted on paper and mounted to cardstock. The suggested 2 × 7 in size is adjustable. Paper and paint combinations can behave differently, so test an offcut before painting the finished strip.
Keep the design simple
Use a stem and a few broad leaves so the motif remains readable at bookmark size. Leave a margin around the paper for trimming and mounting.
Dry before mounting
Let the painted sheet dry flat before trimming. Test adhesive on a scrap of the same paper; some combinations can curl or show through.
Finish the edges
Mount the painted piece to backing cardstock and let it dry under a flat weight if the adhesive instructions allow. Trim the backing to match the painted sheet.
This project is a general plan. Materials, dimensions and construction details may need adjustment for your tools and supplies.