Advice needed: Make a smartphone look like an old nokia?

Hi everyone.

My parents are in need of a new phone (old one is getting really crappy on the reception).

Problem is that they want a no frills phone: Clear buttons, phone and sms only, easy to figure out. And those are getting harder and harder to get by.



Their old phone is a nokia non-smartphone and I was wondering,as a possible alternative, if anyone knows of an app or a way of making an android phone boot as at least a graphical version of a button phone instead of a mini-computer?