Ultra-Thin Heated Glove Prototype

I’m developing an ultra-thin heated glove that feels no bulkier than a regular winter liner yet warms the wearer’s hands rapidly and evenly. To get there I need help moving from concept sketches to a working prototype I can put through real-world testing... (Budget: $8 - $15 USD, Jobs: CAD/CAM, Electrical Engineering, Electronics, Embedded Systems, Mechanical Engineering, Product Design, Prototyping, Textile Engineering)