FeedbackSpark's answer:
Range of powerful features designed specifically for digital product teams:
Muglaunch.com - Design and sell print on demand products easily @ Muglaunch
Back Market - the refurbished (super) market
Customily - Design, sell and print personalized products the smart way
Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
Voodoo Manufacturing - Fast, affordable, high-volume 3D printing
Love & Robots - Create your own 3D printed jewelry & accessories online