News: mobile phone maker Nokia has released open-source files that will let Lumia 820 smartphone users 3D print their own customised case. More »

News: American college student Tyler McNaney has invented a desktop machine that makes the raw materials for 3D printing by grinding up waste plastic from bottles, wrappers and even Lego bricks. More »

Maison&Objet 2013: Spanish designer Héctor Serrano will launch a portable speaker designed to look like the sound icon from a computer at Maison&Objet in Paris this week. More »

Dutch designers Waarmakers have created sustainable rubbish sacks for discarding unwanted items in good condition, in the hope that they'll be picked up by a new owner instead of ending up at a landfill site. More »

Product news: colourful LED torches shaped like the handlebar grips of BMX bicycles by British designer Alexander Taylor have gone into production with Hong Kong brand Praxis. More »

News: a fork for dieters that vibrates when you eat too much or too fast is one of the most talked-about launches at the Consumer Electronics Show in Las Vegas this week. More »

News: a project to bring cheap and easy-to-build mine detonators to Afghan minefields has just nine days left to raise the final £14,000 of its £100,000 goal on crowdfunding website Kickstarter. More »

Product news: British design brand All Lovely Stuff have created a bird box inside a flowerpot. More »

News: rumours are mounting that Apple is working on a wearable smartwatch that would link up to an iPhone. More »

London designer Sebastian Bergne has created a nativity scene comprising nothing but rectangular wooden blocks. More »

Product news: this wind-up toy by British design brand All Lovely Stuff creates abstract art when let loose on a sheet of paper. More »

More doomsday preparations: earlier this year we published this survival kit for tomorrow's predicted apocalypse, containing practical items such matches and water as well as chocolate and hard liqueur. It's designed by Mexican branding company Menosunocerouno and you can read our story about it here »

Product news: new Neff fridges will come with this golf-ball-textured extendable egg tray by German design studio WerterlOberfell. More »

Competition: Dezeen is giving readers the chance to win a set of Stackable Snowmen or Happy Little Trees Christmas decorations, both designed by Fruitsuper Design (+ movie). More »