Take this as abstract or literal.
Something blue, something with blue in the name, just get it in a picture with your bike.
1. Take a photo of your bike with something that matches the theme in the picture.
2. Interpret the theme any way you like.
3. Pictures should be taken between the dates in the topic title.
4. If you post a picture you can either suggest a theme for next weeks challenge or vote for someone else's suggestion. First suggestion to get two supporting votes becomes next weeks theme, probably.