Have you ever been annoyed by not seeing anything on your HackRF Portapack H1 display in bright sunlight? This telescopic sun shade solves the problem.

It is designed as an extension of my other "HackRF Portapack H1 Loudspeaker" design
https://www.thingiverse.com/thing:4893985
The sun shade fits into the groove between the loudspeaker cover plate and the Portapack display. 

See also my other (improved) "HackRF Portapack H1 Sun Shade No. 2"
https://www.thingiverse.com/thing:4924478
including its OpenSCAD source file into which I sank another two days of CAD and prototyping work. It is the significantly better solution of the two and I do not intend (in contrast to my promises, sorry) to cleanup and publish the still messy OpenSCAD source of No. 1. 

No. 2 fits on top of my "HackRF Portapack H1 Loudspeakeker" design.

See also my "HackRF Portapack Antenna Stabilizer"
https://www.thingiverse.com/thing:4892365