Zubbles are currently available in blue and pink. The colored dye in each bubble disappears 15 minutes after the Zubbles pop. So, if you think you’re seeing colored bubbles, you don’t need glasses! And, don’t worry if the Zubbles pop on your clothing.
Source: Bland, Eric. (2009, July 10). Zubbles: World’s First Colored Bubbles. Discovery News from http://www.dsc.discovery.com/news/2009/07/10/colored-bubbles