Machine Synchro Deck Ideas

Ive been playing yugioh for about 2 or 3 years and I've always loved the machine-type cards and run with a Morphtronic/Power Tool synchro deck, but I want to see what else I can do. Yes I know synchros are outdated and "weak" and XYZ's are the "in thing" but I'm sticking to synchros. So what are some machine synchro decks I can make? I'm getting into Vylon and I'm familiar with Karakuri decks as well. Also any way I could still revolve the deck around Power Tool Dragon and the equip abilities to gain any advantages?