Earlier in the thread I suggested I might add a solar blanket to my CustomDiver's canister that holds my ResQLink+ PLB. Today I received a solar poncho I ordered.
https://www.amazon.com/gp/product/B00AMSZW1W/
Thanks @CuzzA for this suggestion. I'm getting ready to send off my PLB 400 to Light Monkey to have a canister made; going to follow this idea and send the hood from this plus my truck key fob (saw a BMW key in someone else's photo but mine is a 12 year old Toyota).
As you know from when we met I'm fair haired, fair skinned, and had my malignant melanoma scare a long time ago. So in any situation where I typically dive that I need a 24 hour beacon, I'm going to need whatever help I can squeeze in to keep from getting baked.