On April 29, 2019, Starbucks unveiled their new summer collection - these colour-changing tumblers.

https://www.instagram.com/p/BxBeBWHAEJb/

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Anyone who knows me knows how excited I am to have gotten my hands on the new @Starbucks color changing cups. It’s like Christmas morning over here. Thanks, @mistyames for helping me call around this morning. #alwaysextra #starbuckscolorchangingcup

A post shared by Lacey McCoy (@lacey_mccoy) on May 2, 2019 at 8:45am PDT

While it looks like your run-of-the-mill tumblers, there's a little twist to them.

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Playing with one of the birthday presents I got! Starbucks color changing cups! #starbucks #starbuckscolorchangingcup

A post shared by Veronica Lorenzo (@v.m.lorenzo) on May 7, 2019 at 4:01pm PDT

Here's a video showing the transformation when a cold beverage is poured into it:

Swipe around to see the different colour schemes.

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Color Changing Cups!✨❤️🧡💛💚💙💜🖤 #disney #disneyworld #wdw #waltdisneyworld #disneyaddict #disneyparks #starbucks #disneystarbucks #starbuckscoldcup #disneycoldcup #colorchangingstarbucks #starbuckscolorchangingcup

A post shared by Rachel Nicole Co. (@rachelnicoleco) on May 4, 2019 at 12:01pm PDT

With these tumblers selling out fast, some have even begun to sell them online at an exorbitant price.

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People are selling these for like $100 on eBay I should have bought 2 sets 😭 #exclusive #starbuckscolorchangingcup #starbucks #basicbitch #NoYouCantHaveOne #pride2019 #instagay #instahomo

A post shared by Matthew Barry (@ruder2417) on May 3, 2019 at 2:48pm PDT

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It is not that freaking serious people!! I mean i want those but come on. #starbuckscolorchangingcup . . . . . #keto #ketodiet #ketomeal #lazyketo #dirtyketo #momlife #ketosis #ketogirl #ketonewbie #ketotransformation #sheddingforthewedding #30something #mamaof4 #weightloss #weightlossjourney #dropweight #weightlossmeme #ketomom #ketomama #ketoweightloss #ketomomma #ketoaf #if #fasting #fittness #weightlossinspiration #beforeandafter #pruvit #ketones

A post shared by Josie (@josiedoesketo) on May 6, 2019 at 11:11pm PDT

Yikes.

The original price of these tumblers are about US$16.95 (S$23), but is more-or-less sold out in most outlets.

There is no worry that the colour-changing tumblers will become astronomically priced though, as Starbucks have stated their desire to make it a recurring item all summer.

While these tumblers are currently available only in the United States and Canada, we hope they eventually come to Singapore.

Top image collated from RachelNicoleco and desire0530