"Sun shade/shield for your phone?"

#PokemonGO: Has anyone designed/made a decent sun shield for his/her phone and is willing to share specs or pics? I live in Arizona and our weather is challenging my Galaxy S7 to survive community day without overheating. I saw some an Amazon and Ebay, but most are designed to be horizontal or don't last.I need to be on a charger for at least part of the time.I know some people are using ice packs and the like, but those temperature fluctuations on the battery can be bad for it. A shield will also mean I can keep my screen brightness lower and conserve battery.Right now I am thinking of making a squared c shape from cardboard and just have it hang over, but I thought some of the brilliant minds here might have hacked something way cooler.cheers! via /r/TheSilphRoad https://ift.tt/2Ko9mBl