Coffee cup couch adapter

I needed a kid-safe coffee cup holder for my couch. The cupholders on my couch measure 83.5mm across by about 50mm deep, and this adapter fits nice and snug-like at 83mm across and 54mm tall.

I measured all my coffee cups and found the widest one to be 107mm across, so I made the area to hold the cup 108mm across. The walls of the cup holder part are nice and tall at 56mm so smaller diameter cups are still well protected.

The handle opening is 23mm wide (which also corresponds to my biggest coffee cup), and the opening starts at 6mm above the base to account for cups with low handles.

I've been using this for about a week now, and I have never felt so relaxed about drinking my coffee on the couch wile the kids are running around.