Say, do you know about tinplate toys? Many old toys used to be made from tinplate. Why do I know this? Because I've got a long history of my own.
A Deck comprised of cards that are easy to tie together for combos, centered around "Gadget" monsters. Use the effect of "Tin Goldfish" to Special Summon a "Gadget." Then use the effect of that "Gadget" to enhance your hand! There are many more combos to find and exploit!