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WAVE is a patented cart and pantry system for modern urban living Designed by BAM.

WAVE goes beyond reuse and recycle… It renews your relationship to what you find out in the world, and how you bring it home

Photo of Evelyn Ihrke

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WAVE [US Patent # 9090276]

Is a patented cart and storage system

That goes beyond reuse and recycle… It renews your relationship to what you find out in the world, and how you bring it home.

Bring home what you want, and the full spectrum of nutrition you need, not only what you can manage to carry.

At home WAVE lets you store your food quickly- no unpacking and resorting needed… pop the basket in the refrigerator or on the racks!

What early, lightweight experiment might you try out in your own community to find out if the idea will meet your expectations?

We are prototyping a bent plywood model this week. When this is completed we will take all three [wire, collapsible, and plywood] around to Hanna’s friends- most of whom have graduated as Architects or Engineers. We will then test this in public at a street art festival.

What skills, input or guidance from the OpenIDEO community would be most helpful in building out or refining your idea?

DesignThinking never ends, does it? Our biggest question is how we connect with the market- people who use WAVE will undoubtedly have suggestions- but we have to get it to them first! Hanna and I have designed quite a few things [colanders, chill sticks, beverage holders etc.] to add value to the WAVE experience- but it takes a long time to prototype every good idea since we are only two people!

Tell us about your work experience:

Hanna has a degree in Architecture. Evelyn, her mother, has a degree in English Literature. We wanted to make something durable that promotes mindful connections in our communities and reduces plastic waste. To accomplish this we became a Design Studio. In trying to make connections to the market we've recently learned about Zero Waste and the circular economy- a community waiting for the WAVE!

This idea emerged from

  • An Individual

How far along is your idea?

  • It was in the works before this challenge – it’s existed for 2-6 months

Attachments (1)


The latest prototype: a bent plywood WAVE. It's waiting for the modular bent plywood basket holders that can easily manage canvas tote bags as well as the wire frame baskets. Quick release at the base lets you use the cart even if you use a car to get you there.


Join the conversation:

Photo of Hanna Ihrke

Thanks mom for covering just about everything we collaborated on- I think the one thing you didn’t illuminate so much is the accessibility issue- the idea that WAVE can help people stay mobile and help them get good nutrition by not being limited by what they can carry. The baskets have a handle that we didn’t prototype on the wire model, and the canvas bags on the bent plywood still have to be mocked up! You’re right- design thinking never ends!

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