You might remember that industrial designer [Eric Strebel] tried to make a collapsible silicone container with 3D printed molds a few weeks ago, and was finally successful after dozens of attempts.

One tip to remove stains from plastic is to create a paste from mixing two tablespoons of baking soda with adequate water. Apply the paste to the stained areas and let it sit for a few hours. Then ...

Top picks tested - Space-saving silicone designs for super convenient hydration - combining durability and portability to prevent overhydration ...