Here at Cooler, we are big fans of Design Sponge. If you're looking for a site with awesome crafts that actually work, these are your guys.
Here is one of our absolute favourites - your own homemade phone case. Yes, we're all guilty of dropping our phone on the floor. At least you can protect it with this radical case.
You don't need anything fancy - just a piece of material (they've used Pendleton Wool, but you could just use an old checked shirt), a needle and thread.
Even if you've never sewed anything before in your life, you can definitely give this a go.
Great idea to fill a rainy day, right?