how you doing? and happy new year I've been hard at work mostly and had little time for fun stuff like robotics. but i have been playing with li-po batteries from mac laptops, quadcopters, arduino (really makes things easy and low cost to do). 3D printing, yup bought a prusa dual head, took a few weeks to get working right (was a kit etc) but love it now i can design something and walk away while it prints.
i have plans to build a large - ish programmable robot using brushless motors from balance boards (cheap to get on ebay btw)
probably a lot of other stuff too that i cant remember lol.