cupholders

Hi y'all! I have a random question about the Model 3 cupholders. For those who use those insulated tumblers/mugs, what are the brands and/or size of tumbler do you guys use that fits in the cupholders? I recently placed an order for the Model 3 and this was something I completely overlooked...

What do you recommend for aftermarket rear armrest/cupholder consoles for a Model S that lacks the executive rear seats? How about those floor-based cupholders with lighting and dual USB's? Other storage and convenience product recommendations? I'm new to both my Tesla and Tesla Motors Club. Is...