Here’s a great little tool for mobile  and web UI designers. MightyDeals has an iPhone stencil kit, conveniently shaped like an iPhone, that allows you to draw offline iOS 7 UI designs for $25 (15% off).

Computer software is pretty incredible. Especially when it comes to design and photo editing. But sometimes, you just want to grab a pencil and start sketching. That’s where a stencil can come in real handy. And if you’re looking to whip up some iPhone or Website mockups, then have we got a Mighty Deal for you! The UI Stencils iPhone Stencil Kit gives you everything you’ll need to draw up your own iOS7 iPhone prototypes. Well, everything except the hands, that is. The Website Stencil Kit is the perfect tool to wireframe quickly and efficiently with the most commonly used iconography and interaction techniques when designing a website. Made of high-quality stainless steel, these stencils feature the most popular icons and objects needed for your iPhone and website sketches. You’ll also receive a Zebra mechanical pencil, downloadable templates, UI Stencils stickers, and a plastic protector. It’s all yours for a limited time, for only $25!