This one from Amazon https://www.amazon.com/gp/product/B01N210GDQ/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1
is working out pretty well for me. It stays on the dash with a tacky but not sticky silicon pad and holds my Easy Pass tag as well as my phone in plain view. I put some Velcro inside to hold the Easy Pass. It closes like a clam shell nicely when I'm not using it and almost looks like part of the car's design. Note that I have to remove my Easy Pass to close it.