Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Cigarette butt watch / Home appliance

Cigarette butt watch

The watch can use temperature difference to produce electric power and strap can storage cigarette butt to transfrom new green energy


Shih Chien University

Shih Chien University
Taipei city, Taiwan

Shou-Dong Peng,
Shih Chien University