If you've ever lamented the waste caused by leftover coffee grounds, you can now recycle them and make your very own coffee cup sleeve. The Eco Sleeve Maker allows you to make sleeves by compressing and converting used grounds. You just have to add water and a little bit of sugar to stiffen it up.
Not only do you get to make an environmental impact by reusing the grounds, you also get to cut down on the amount of paper used to make traditional sleeves found in cafes and other establishments selling coffee to go and save money in the process. Coffee grounds also help with composting, dehumidification and deodorization. So when you're done with your coffee cup sleeve, you can get a third use out of it and add it to your compost.