Bespoke terrazzo tiles made using the shells of local rock oysters clad this colonnaded pavilion on Sydney's waterfront, designed by local architecture studio Besley & Spresser. More about Besley & Spresser clads Sydney Harbour pavilion with oyster shell terrazzo
Locally sourced, bio-based materials, including hemp and crushed seashells, feature in Spring Studio's interior for the World Heritage Centre building in Lauwersoog, the Netherlands. More about Spring Studio uses biomaterials to create sustainable interiors for World Heritage Centre Wadden Sea
The shell of a prehistoric marine mollusc informed the spiral shape of the Pasona Natureverse Pavilion at Expo 2025 Osaka, created by local architecture studio The Design Labo. More about The Design Labo creates shell-shaped pavilion for Expo 2025 Osaka
Design collective Fahrenheit 180 has created tiles using discarded shells from oyster farms to show the "potential of overlooked materials". More about Fahrenheit 180 shows tiles made from oyster shells at Lisbon's Gulbenkian art museum
Mexican architecture studio Lanza Atelier has taken an "introspective" approach to this house in Cancun, which incorporates sea-snail shells into its concrete surfaces and features a curved circulation core. More about Lanza Atelier uses shells to inform and build Caracol House
Mexican design studio Manufactura and New York studio BioMatters have created 3D-printed objects using a composite consisting mainly of shells from industrial lobstering byproducts in Maine. More about Manufactura and BioMatters create 3D-printing composite from discarded lobster shells
Marcel Wanders, Stefano Giovannoni and Elena Salmistraro are among a group of international designers to have put a contemporary spin on the traditional Korean craft of mother-of-pearl inlay, in a collaboration with local artisans. More about Six designers reimagine traditional Korean mother-of-pearl craft for modern life
From concrete-like building materials to restaurant crockery made from the eateries' own food scraps, this roundup explores eight projects created using discarded shells. More about Eight innovative materials and products made from salvaged seashells
Tokyo advertising agency TBWA\Hakuhodo and plastics manufacturer Koushi Chemical Industry Co have created Shellmet, a hard hat made from discarded scallop shells and recycled plastic. More about Shellmet is a helmet for fishing workers made from waste scallop shells
Plates made from fish bones, potato peelings and oyster shells feature in the work of recent design graduate Carly Breame, who collaborated with a British seafood restaurant to make a "menu" of hyperlocal ceramics. More about Carly Breame turns seaside town's leftover fish and chips into plates
London architecture studio Bureau de Change has produced a range of patterned tiles using Thames Glass, a biomaterial created by artist Lulu Harrison from mussel shells. More about Bureau de Change creates architectural tiles using glass made from mussels
Rice starch, fish bones and oyster shells from the kitchen of Gothenburg restaurant Vrå were combined to form this dual-purpose stool and side table, created by local designer Carolina Härdh. More about Carolina Härdh crafts furniture for restaurant Vrå from its own food waste
Designer Bonnie Hvillum's Natural Material Studio has created conceptual ceramics from clay made out of powdered seashells from Denmark's Noma restaurant. More about Natural Material Studio develops Shellware ceramics from leftover seashells
Central Saint Martins graduates Brigitte Kock and Irene Roca Moracia have collaborated to create concrete-like tiles that give new "economic and ecological" value to invasive species. More about Researchers create bio-concrete from weeds and crayfish shells
Newtab-22 has used waste seashells salvaged from the seafood and aquaculture industries to develop a sustainable material that resembles concrete. More about Sea Stone is a concrete-like material made from shells
Vietnamese designer Uyen Tran has developed a flexible bio-material called TômTex, a leather alternative made from food waste that can be embossed with a variety of patterns to replicate animal leathers. More about TômTex is a leather alternative made from waste seafood shells and coffee grounds
Sea Stone is a concrete-like material made from seashells that Newtab-22 is introducing during the VDF x Ventura Projects collaboration. More about Newtab-22 uses seashells to develop concrete alternative
Four designers from the Royal College of Art and Imperial College have developed a series of machines that turn seafood waste into a biodegradable and recyclable bioplastic. More about Shellworks turns discarded lobster shells into recyclable bioplastic objects