: Buy a plain white curtain and use stencil brushes and chalk paint to add custom geometric or floral designs.

If you can't find a design you like, you can create a custom version using everyday textiles:

: Sew decorative strips, lace, or pompoms from old tablecloths or linens onto a plain curtain for a unique, upcycled look . DIY Customization

: Add small magnets to the bottom corners of the liner to keep it from "clinging" to you and to ensure water stays inside.