Of course, only a fool would put a caffeinated drink in a toddler’s cup, but it would be fun to give the grandparent’s a start when they see the grandkid coming to visit with their own cup of high-octane energy, wouldn’t it? This 8oz cup is made of BPA-free plastic and has a hard, snap-on sippy lid. It’s 3.5″ in diameter x 4.5″ tall; it’s for ages 6 months and up. The faux cup sleeve has a “Baby Ducks Coffee” logo, and it’s all microwave and dishwasher safe. The Rise and Shine Sippy Cup is $5.99 at ThinkGeek.