Custom Design Products

Children’s play, new and sustainable materials, and the world of art, architecture, and design provide continual inspiration for me as I design play objects. My concepts and products bridge the worlds of art and play and are rooted in the idea that play is a lifelong and life-sustaining activity.

I work on custom design projects for museums and other institutions as well as corporate gifts and limited editions. I am available for consultation and presentations on the many facets of toy design.

The toys and associated educational materials are available for loan to museums and other institutions interested in the value of play and early childhood development.
Contact for details.

Object/s of Play – The Work of Cas Holman and Karen Hewitt

On view May13 – October 22, Shelburne Museum – Pizzagalli Center’s Diana and John Colgate Gallery

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Object/s of Play Gallery

Karen Hewitt’s Motorized Construction featured in The Illusive Eye

On view February 3, 2016 to May 21, 2016, El Museo del Barrio, NYC

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New Museum, NYC

Designed exclusively for the New Museum (NYC) based on the New Museum building by SANAA architecture firm (Pritzker Prize winner)


Museum of Art and Design, NYC

Designed two toys based on the logo of the Museum of Art Design

MAD Constructs & Crazy Quilts

Museum of Modern Art, NYC

Designed toys featured in MoMA Design Stores in conjunction with MoMA’s exhibitions

Color and Form Blocks

Bauhaus 1919-1933: Workshops for Modernity. 2008


Home Delivery – 2008


In conjuction with the exhibit "Home Delivery" 2008


Color Chart 2008


In conjunction with the exhibit "Color Chart" 2008