Stanley has been releasing official Barbie Stanley Cups every day this week. Grab one now before they're all gone.

Stanley cups fit in car cup holders despite their large size and have a straw that makes staying hydrated just a little more fun. The viral version of the Stanley cup is the 40-ounce model, likely because drinking two of them almost equals the suggested daily water intake for women, taking the guesswork out of drinking enough water each day.