Imade a diagram. its an amputated santa (so he wont escape). and santa's magical thoughts are then inputed into a megatron (fancy computer). the megatron then transforms the magical thoughts into the raw untapped power of a rainbow. another megatron then taps the raw untapped power of said rainbow. the rainbow is then killed and used to power subways and things that arent subways. the whole process is fairly effecient and theradiation emittedhardly causes cancer. i know what you're thinking and no, santa's magical thoughts wont be any less magical without his Arms.
Or, without his legs.