Mirraw - Get all traditional Indian Clothing like Sarees, salwar suits, lehenga, jewellery, Kurta, sherwani and more on one place at best prices with free shipping for India and low cost shipping for USA, UK
RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.
Shapeways - Shapeways - 3D Printing Service and Marketplace
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.
3D Hubs - Airbnb for 3D printing
Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything