Mainstays 20-Ounce Color-Changing Acrylic Watermelon Can Shape Tumbler

from PositivelyJoyful

Pretty nifty cup! I'm not sure why it is labeled as a beer cup. The cup, brand new, was white with lemons. I filled it with ice water and it turned blue with lemons. After washing the cup and drying it it is now light blue. It still returns to a deeper blue with an icy beverage. The cup is pretty...

from chkleinf

Here's a cheery cup for a beer drinker! Or any other sort of cold liquid drinker, really, though the lip is sort of shaped like the top of a can. This cup is two layers of plastic, so it insulates some, and the lemons are summery and happy. My husband was kind of confused as to why there were lem...

from Trish

I love this cup so much! You know when you like the feel of drinking out of an aluminum can but don’t think it is very sanitary? This feels just like drinking out of the can and fits in your hand just like the can! The colors are adorable and get even more vibrant when cold. This cup is very dura...

from 501

The Mainstays color changing cup is super cute! The lemon designs are really vibrant and bright. The color changing feature is cool! It's a good size, not too big that it is hard to hold. The Mainstays brand is one that I trust, so I think this cup with last a long time!

from Val

These cups are so fun and cute for summer! They were a hit with my kids! They are big but they're plastic so very kid friendly. My 5 and 10yr olds love the color changing.