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Zines can be made with many other materials. Get creative!
Old magazines, ads, books, maps, newspapers, greeting cards, etc can be used for collage (you will need a glue stick for this)
Images printed from the internet (I've supplied you with some great open access collections where you can get images!) or saved to your phone
Printed copies of your own writings that can be remixed or turned into a zine
Any other crafting supply! Ribbon, glitter, stamps, stickers, washi tape, fabric, crayons, colored pencils, markers (Sharpies are especially associated with the aesthetics of zines), stencils (cookie cutters can make great stencils), paint, different kinds of paper, etc
How to Make an 8 Page Zine Video Tutorial
A few notes about the video tutorial:
Austin Kleon is a Miami Alum!
If you prefer, you can use scissors instead of ripping the paper. Scissors will give you a cleaner cut while ripping will give a more textured edge.
If you don't have a bone folder, you can try using your fingernail or the flat edge of a butter knife to get a sharp crease.