Got lemons, make lemonade. Got marker bleed-thru, make bleedthrumanade.
My Ingredients: Letraset Promarkers; Letraset Fineliner 0.5; Faber-Castell Big Brush; White Pentel Sunburst Gel Pen; Micron Pigma .005; Paperblanks Antique Map journal.
Feel free to use any ingredients you have on hand. You just need markers or pens, and paper, that will leave color on the back of the page when you apply it to the front.
When you use darker colors, the intensity on the front and back are often the same, so you'll need to use your ingenuity to find ways to change them. Or just go with the flow, and let that part of the drawing be the same on both front and back.
I wanted some difference so I used the Pentel White gel pen to draw a different sort of texture on the dark blue, and used the bold-lined Faber-Castell Big Brush to break the blue into smaller sections. I ignored the color sections on the front and used a striped string for the areas behind the blue. On the back, I followed the color faithfully to create my string.