Here’s an interesting iPhone case! SIMPLcase is designed for travelers so it can hold spare and different country SIM cards. This lets them save money (avoiding pricey roaming fees) and spend less time worrying about losing the tiny sim cards! As well as storing your SIM cards, it can also use any standard credit card or bank card as a stand to prop up the phone in either landscape (horizontal) or portrait (vertical) orientation which makes viewing movies on planes so much easier.
Please do an article on SIM cards and changing your VPN.