We have the tommee tippee fresh food feeder from the baby factory. You can put anything in it really - banana is our all time favourite.
As for the rusks (we bought the Ferex ones), we've given those to Gina as they are - I think it will be pretty hard to choke on them as they are very very hard. I wanted to see what they tasted like and had trouble biting some off

(after she was finished with it of course)