Its TeaTime with Addie, "O its a beautiful day in the neighborhood, a beautiful day in the neighborhood, won't you be my neighbor"!Bubble Tea is Tea with Tapioca in it. Try some. That should give you the inspiration you need.
Your reaction to the tea will be one of two ways.
1. You will spit it up all over the room swearing that is the nastiest concoction you have ever tasted.
2. You will actually like it
If it's anythink like the bubble tea places around here, this is apparently what they are after
Not every logo has to be some sort of visual abstraction or the product or, more likely, a visual synechdoche or a metonymy. Blue, green, and yellow don't have to be pastels. Merely because the word 'Bubble' is a part of the product doesn't mean that the result has to look like a dog bath or a package of chewing gum. You need to get way outside the box created by the strength of the word 'Bubble' and the color requirements.
bubbles, green, orange, blue as per specs