Stroller sun protection.

 Needs 8x M3 25mm long screws and 8 M3 nuts for mounting. This model will fit only certain shape of an umbrella handle. You don't need a perfect fit, but  try to print UmbrellaHolderTop.stl to see if it fits at all. The holder has 2 clamping parts with carved profile of the umbrella handle.  Clamp the umbrella between these 2 parts with 4 M3 screws. Than attach the holder part on your stroller. Check if the holder is not interacting with stroller frame when the stroller is in the packed state. Attach the clamped umbrella  to the stroller using the dovetail. Yo can print the holder part 2 times and switch the side from which the shade is provided. Detach the dovetail joint when no shade needed. 

I only used the dovetail from the original model so the cup can be replaced by the umbrella.