Anyone know what might have been attached to this?

[mattbrown]

It was attached to a top tube, and the closest I've got to identifying it, is that it may have come from Aldi or Lidl.

 

[greencat]

Phone/map case?

 

[Guinessisgoodforyou]

As above

 

[legrandefromage]

a spadongle plomp

...obviously!