Power Drill Concepts
Tools : Pilot Razor Point, Papermate Flair, Prismacolor Markers

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Headphone Concepts
Tools : Pencil, BIC Soft Feel Pen, Sharpie

Tents
Tools : BIC Soft Feel Pen, Papermate Flair, Prismacolor Markers

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Submersible Vehicle Concept
Tools : BIC Soft Feel Pen, Papermate Flair, Prismacolor Markers