This is the DIY cousin of Piñatex, the pineapple-leaf material worn by Hugo Boss and H&M. It’s the most labor-intensive project on this list, but it makes a genuinely structured, durable tote.

• Save pineapple tops and scrape the leaves with the back of a knife to expose the long, tough fibers.
• Boil the fibers in water with a little baking soda to soften them, then rinse and dry completely.
• Arrange the dried fibers in a crisscross mesh on parchment paper — the more layers, the stronger the sheet.
• Make a natural resin by heating cornstarch and water into a translucent paste, with a splash of glycerin for flexibility.
• Paint the paste over the fiber mesh, press flat between parchment, and dry fully in a dehydrator or a low oven.
• Stitch several dried sheets together with a heavy-duty needle to build the tote’s panels.

Mycelium — the root structure of mushrooms — is what Stella McCartney and Gucci have been investing in for a velvety, suede-like material. This one is genuinely grown, not manufactured, and feels more like a science experiment than a craft project.

• Get mushroom spawn (reishi or oyster) plus a substrate like sawdust or used coffee grounds.
• Dampen the substrate and microwave it a couple of minutes to sterilize it, then let it cool completely.
• Mix the cooled substrate with the spawn and press it firmly into a mold, like a small Tupperware.
• Cover with vented plastic wrap and let it sit warm and dark for 2–3 weeks until fully colonized in white mycelium.
• Press the block between parchment under heavy books to flatten it, then dry slowly in a dehydrator or low oven.
• Cut the dried sheet into a wallet pattern and rub in a little natural oil for suppleness.

Cork is harvested from the bark of the cork oak tree in a way that doesn’t harm the tree — the bark just grows back. That makes it one of the most sustainable materials on this whole list, and this belt turns raw scraps into something chic and lightweight.

• Buy raw cork bark scraps and simmer them 10–15 minutes to make them pliable, then press flat while they dry.
• Arrange the flattened pieces like a puzzle onto a canvas or old-denim backing.
• Glue them down with flexible fabric glue and let it cure fully under weight.
• Cut a long strip for the belt, then attach a buckle and punch holes with a leather hole punch.

Apple leather is one of the simplest projects here — it’s basically a fruit roll-up you engineer to be durable instead of chewy, folded into a no-sew card holder.

• Blend apple peels and cores into a smooth puree, then stir in a tablespoon of cornstarch per cup as a binder.
• Spread the puree thin and even on a silicone baking mat using an offset spatula.
• Dehydrate low and slow (6–12 hours) until the surface is no longer sticky and feels leather-like.
• Peel the dried sheet off the mat, then buff on a light coat of carnauba wax for durability and a soft shine.
• Cut and fold a no-sew card holder pattern, secured with a single brass stud.

Innovative companies grow bacterial cellulose on waste coconut water to create a translucent, skin-like material — this version uses a kombucha SCOBY (a Symbiotic Culture Of Bacteria and Yeast) to get a similar effect at home.

• Brew a strong batch of sweet tea (about 4 bags and 1 cup sugar per 7 cups of water), then cool it completely.
• Pour the cooled tea into a wide, shallow fermentation container and add a bottle of raw, unpasteurized kombucha.
• Cover with breathable cloth and secure with a rubber band, then let it sit warm and dark for 2–4 weeks until a thick, gelatinous SCOBY forms.
• Lift out the SCOBY, rinse under cool water, and dry it flat on a board or rack — it shrinks and thins a lot as it dries.
• While still slightly damp, cut it into long strips and weave them into a tight pattern — they fuse together as they finish drying.
• Fold the woven sheet, stitch the sides, and add a magnetic snap.

Wineries produce tons of grape pomace — the skins and seeds left after pressing — and a company called VEGEA turns that waste into high-quality vegan leather with industrial polymers. This home version trades the lab process for a clay-like dough perfect for a bold cuff bracelet.

• Blend dark fruit skins — grape is ideal, but blueberry or blackberry works too — into a fine pulp.
• Mix with an equal amount of cornstarch plus a few tablespoons of glycerin — the secret to keeping the final piece from turning brittle.
• Roll the dough to about a quarter-inch thick on parchment paper and cut out your cuff shape.
• Air dry for several days, or bake low and slow until firm with a slight flex, then sand the edges smooth.
• Seal with a thin coat of clear natural wax polish for shine and protection.

This one steps outside the kitchen entirely — an old bike inner tube, made from strong, flexible butyl rubber, becomes a rugged strap using nothing but heat and pressure.

• Cut an old bike inner tube open into a flat sheet and clean it thoroughly.
• Cut several identical strips — three or four layers is a good start.
• Sandwich the strips between parchment paper and scrap wood, then clamp tightly.
• In a well-ventilated area, use a heat gun or an iron on high to evenly heat the top of the wood sandwich until the layers bond into one solid strap.
• Let it cool completely, then punch holes at the ends and attach swivel clips.