Tagged with "marbles"

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  1. Marble Puzzle

    Marble Puzzle

    Case Study

    by Kathy Krafft Published April 24 2007

    A puzzle you can make for just a few bucks. Start with the two marbles down. Can you get them both up? We put together an in-house exhibition with about 20 different table-top puzzles. We were unsure if visitors would be frustrated by not being...