I would love the option of a goody bag containing only unlimited calls and unlimited minutes.
I never use the internet on my phone and have no wish to. I use a laptop or desktop for internet access. My phone is solely used for calls, messaging and pictures. Not everyone wants constant access to the internet for various reasons. I believe a lot of people would consider a goody bag deal with this option. It would make a good gift from i.e a son to his elderly mother or maybe a parent to a child to help restrict their unsupervised internet access.
I think this is a good idea and would increase the already loyal giffgaff community and raise company profits. It also helps to show how giffgaff are always trying to please all the people by developing their already great products/offers.