Firework Oreos are very real – the new limited-edition cookie, which hit stores nationwide in May, is like a standard chocolate Oreo with a creme center, but with rainbow specks of popping candy. Oreo also let consumers know that it’s letting fans choose the next flavor. In a similar vein to Lay’s successful “Do Us a Flavor” campaign, fans can now enter their dream Oreo idea using the hashtags #MyOreoCreation #Contest.