The designers behind HuskeeCup make the reusable cup out of husk waste material from the production of coffee.

“The crowdsourcing platform — which helped launch more than 9,000 projects over the past 12 months — is encouraging other designers to embed environmental and sustainable sourcing criteria into their planning and ideas at a very early stage of creation.”
Article: How Kickstarter is encouraging designers to consider circularity and other environmental factors