Our local one is run by the Trussell Trust, and the list is identical to IJust's - very restrictive. No baby items (nappies, milk and such-like), no sanpro products or toilet rolls. The list I was handed going into my local supermarket the other day also had lots of the items crossed out, so they've obviously received a glut of them. Couldn't get tinned sponge puddings (only microwave) and as the list specified tinned, I mentioned it to the store Manager, who said I was the second person to mention in that day, so he'd look into it. I bought a selection of tinned tomatoes, veg and tuna, jam, biscuits, Christmas chocs, biscuits, instant potato, multipacks of some things so they could possibly be split, but on the whole, not very inspiring 
I might send Trussell an email to ask if they could add some more items to their list. The home-bake rolls are a good idea, as they have a longer shelf-life.
I suppose, in a way, if items have been crossed off for potential purchase, it is a good thing as it means people are donating, but if the list could be a bit more extensive, or a special one brought out for the Christmas period, that would be helpful for people wishing to donate.