I finished my second attempt at the cell phone yesterday and I'm really happy with the results. Instead of trying to crochet the buttons, I decided to go with thread and felt.
I had so much fun with it that I decided to write up the pattern and publish it to Ravelry. The pattern is free and it includes templates to cut and stitch the felt. To get the pattern, use this link ==> download now
If you would rather get your hands on the finished project, I also decided to list that on Etsy. As for my daughter, I think I'm going to make her a pink phone instead!