Everyone's obsessed with these mood-ring-esque cups that change colour based on the temperature of your drink. The ones from Starbucks might be most famous, but here's a hot tip (yes, that's a temperature-based pun): Costco sells them for less money!\nNarcity Québec discovered the hot deal while perusing the Les accros du Costco Facebook group, where a post on this subject garnered more than 500 comments. People are REALLY into these cups.\nEditor's Choice: This Website Helps You Discover Tons Of Black-Owned Montreal Brands All In One Place\n\n\n\n$15.99 - $23.99\n\n\nPrice of 12 Manna cups at Costco\n\n\nThe Costco version of the cups are by the brand Manna. \nThey come in four colours — blue, green, purple and orange — all of which change shades once filled with a hot beverage.\nA 12-pack of the 16-ounce cups costs $15.99 in Costco stores or $23.99 on the Costco website. \nComparatively, according to Narcity Québec, the Starbucks ones retailed for $26.95 plus taxes for a set of five when they launched last May. \nIf you want to get your hands on some magical colour-changing cups and save some coin, Narcity Québec reported that they've been spotted at several Costco stores across the province, including in Laval, Boucherville and Drummondville.\nOr there's always old reliable online shopping!