Put your million-dollar app idea on paper with these UI Stencil Kits ($27). With versions for the iPhone, iPad, Android, Windows Phone, and the web, the kits consist of a stainless steel interface stencil and a pretty great Zebra mechanical pencil. For perfect wireframing, you'll need to pick up a matching device sketch pad ($14).
You don't have to be that old to remember when calculators were cool — and now you can celebrate that bygone era with an HP Limited Edition Calculator ($80). While its landscape layout is slightly less revolutionary than it was 30 years ago when it launched, the 12c — its official name — is still a handsomely retro tool featuring a 10 character display, a RPN entry-system logic, over 120 built-in functions, 20 memory registers, a unique production number laser-etched on the back, a special, limited-edition gift box, and, for the financial gurus in the crowd, is good for use in CFP and CFA certification exams. [via]
When you're in a creative groove, you don't need anything breaking your flow — and that goes double for your writing utensil. The Rotring 600 Drafting Pencil ($33) is a Japan-only dream with a nearly-perfect weight and feel, an all metal brass body with knurled grip and lead grade indicator, a fixed 4 mm sleeve, a clip, and an eraser under the top cap. Also available in silver.