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318 contributions
619 ideas
619 final ideas
101 final ideas
101 final ideas
Announced!
Starts in 10 days

Refinement

During Refinement, participants will have the opportunity to iterate upon their Ideas by gathering feedback, developing prototypes, and testing their business models. 

At the same time, shortlisted Ideas will be working closely with a global network of Advisors, and community prototypers to further develop their concept. Ideas will be prompted to demonstrate notable improvement and answer a set of Refinement questions in order to be considered for one of our three distinct prize categories

Read the Challenge Brief for more information on this important topic.

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An easy to use, fun bottle that keeps the cap inside the circle, out of nature and just where you need it -with the bottle where it belongs.

An easy to use, fun bottle that keeps the cap inside the circle, out of nature and just where you need it -with the bottle where it belongs.

Photo of Alan Somerfield
77 26

A sustainable IoT connected machine distribution system to eliminate in-home sachet use & create major cost savings for BoP families.

A sustainable IoT connected machine distribution system to eliminate in-home sachet use & create major cost savings for BoP families.

Photo of Brian Bauer
55 29

Promote a cultural change of consumption with a system of bulk purchases of hygiene and cleaning products in developing countries.

Promote a cultural change of consumption with a system of bulk purchases of hygiene and cleaning products in developing countries.

Photo of Guilherme Broliato
39 12

ThisCap is tethered bottle cap that remains connected to its container and ensures recycling.

ThisCap is tethered bottle cap that remains connected to its container and ensures recycling.

Photo of Michael Maguire
32 15

A global substitution of plastic straws with 'nsheke' straws used by local communities in Kagera region, Tanzania for taking local beer.

A global substitution of plastic straws with 'nsheke' straws used by local communities in Kagera region, Tanzania for taking local beer.

Photo of Sadam Matsawili
25 19