Zéfal Gizmo Universal is great for attaching a bottle cage when you don't have the mounts on your bike frame. Attach anywhere as long as the straps are long enough.

BAR TENDER

Forged alloy tapered construction
Integrated non-slip rubber gripper
Sturdy handlebar mounting system
Fits most standard handlebars
Design holds most tapered drink cups
Holds beverage securely while you cruise
Colour Black