Best replacement cup holder for Uppababy G-Luxe?

[skoo]

The standard cup holder popped off on the first trip we took with our G-Luxe and we still haven't replaced it. We still have no idea when we lost it since we have the travel bag! Anyone love their cup holder on the G-Luxe? I know I can order a replacement one from Uppababy, but given that it seemed to pop off so easily, I'm worried that it will just get lost again.

Thanks in advance!