Coffee on the morning ride with my son to school is a definite must have! I use a 'Migo' cup with a handle that I bought at Target. I keep in my handlebar mounted bottle cage. Or, I can hook it on the handlebar if the road is smooth. Works great

By the way, I was admiring your ride, Mmach. Very nice set-up, indeed! But I have a question: What are those things sticking out below your handlebar?