Tested in Unity 2019.2.6f1and LWRP 6.9.1.
Extending LWRP
Examples for extending the LWRP
Find other examples here: https://github.com/Unity-Technologies/LWRP-CustomRendererExamples
Blurry Refractions
Ported the "Blurry Refractions" sample from the Graphics Command Buffers page
Open the Blurry Refractions scene and assign the BlurryFractions Renderer as a custom renderer in the Settings\ExtendingLWRP pipeline asset.
Per-Object Bloom
Open the Sample scene to see them both working together.
Open the Blurry Refractions scene and assign the BlurryFractions Renderer as a custom renderer in the Settings\ExtendingLWRP pipeline asset.
Assign the PerObjectBloom Renderer as a custom renderer in the Settings\ExtendingLWRP pipeline asset.
Notes on extending the LRWP in general can be found in the wiki of these repo (OUT OF DATE).