Using that gorgeous gold mesh patterned fabric trim on a junk journal or mini album sounds like a fantastic idea! With a width of 20cm and sold by the meter, you have plenty to work with. Here's a suggestion on how you could incorporate it into your project:

Cover or Binding Accent: Use the fabric trim to cover the spine or edges of your journal or album. Cut the trim to the desired length, ensuring it's long enough to wrap around the spine or edges. You can either glue it directly onto the cover or sew it for a more secure hold, depending on the material of your journal or album.

Page Dividers: Cut smaller pieces of the fabric trim to create elegant page dividers within your journal or album. These dividers can serve as decorative accents between different sections or chapters, adding a touch of luxury to your creation.

Embellishments: Cut out smaller motifs or shapes from the fabric trim to use as embellishments on your pages. These can include flowers, stars, or any other shapes that complement the theme of your journal or album. Attach them using glue or stitching for a dimensional effect.

Closure: If your journal or album has a closure mechanism such as a tie or button, consider using the fabric trim as part of the closure. You could create a decorative tie using the trim or attach a small piece as a button accent.

Layering: Experiment with layering the fabric trim with other materials such as paper, lace, or ribbon to create visually interesting textures and patterns on your pages.

Remember to test your ideas on scrap materials first to ensure you achieve the desired effect. Have fun crafting your junk journal or mini album with that beautiful gold mesh patterned fabric trim!