Torrance CA



About Us


Innovation is EVERYTHING, and Team Inventoy makes toys that look great and deliver FUN. We are a seasoned  group of toy industry specialists: artists, designers and engineers who use our passion, talent and experience to deliver fun, new immersive play experiences that last a long time. 

Professional Experience and Knowledge

Eric Ostendorff is a Mechanical Engineer with 35 years of professional toy design experience. He specialized in Hot Wheels track design for 30 years at Mattel. With a knack for clever mechanisms & electronics and a passion for robotics, he has a proven ability to deliver exciting products on time, on cost, and on target!

Keith Hippely is also a Mechanical Engineer, with 38 years of professional toy design experience. He has extensive experience in designing playsets and feature die-cast vehicles. Keith was the driving force behind Hot Wheels' wildly successful Color Racers and Attack Pack  toys, among many others.

Mike McKittrick is a mechanical engineer and artist with 42 years of professional toy design experience. He has extensive experience in product development and  manufacturing, and continues to expand his skillset with high tech  app development and 3D design and printing.  

Lisa Larson is a Mechanical Engineer by trade, but an artist and innovator by passion. With 17 years of professional engineering, product development, innovation, and design, she has worked in automotive, satellites, children’s toys, pet toys, footwear, and accessories. Lisa has a proven ability to create new, exciting toys for emerging trends, white space opportunities, and manufacturability. 

Our Services

Inventoy provides a variety of design & prototyping services to deliver functioning models. Concept, ideation, design, mechanicals, electronics, sound design, programming, visual design, rapid prototyping and product development. Choose from any of our services, we are here to help you achieve your goal. We are also available for onsite consulting at your location.

Eric's Thirty Years at Mattel

A Fortune magazine snippet about Eric's "wacky" Mattel career, creating new stunts and  track sets for Hot Wheels cars.

Hot Wheels Trackset Designer

Eric the Robot Nut

Eric grew up watching "Lost in Space" and has been a robot nut his whole life. He has a sizable vintage toy robot collection.

Tour Eric's Robot Room

Domo Arigato, Mr. Roboto

Eric builds many new robots regularly. He has authored numerous robotics articles about them, published in ROBOT and SERVO magazines. Throughout 2017 he was "Mr. Roboto", writing a monthly Q&A column for SERVO magazine.

See Eric's SERVO Articles

Keith: Car Guy, Stanford Man, Mars Rover Engineer

Keith is a Stanford man who got into Mattel by entering a toy design contest. He's the guy who brought you the Hot Wheels Mars Rover  in 1997.

Hot Job at Hot Wheels

Contact Us

Located 20 miles from Los Angeles in Torrance CA.

Feel free to contact us with your needs or inquiries.


22527 Crenshaw Blvd #208, Torrance, CA 90505


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