Actually tunisian is a type of crochet, using the hook like in crochet but usually the needle is longer than the crochet hook. A few days ago, our group’s moderator show us her work with tunisian, but it’s not an usual tunisian. She made the tunisian in a round and also made a beautiful bag with entrelac tunisian which tempted me to give it a try.
I don’t have the special tunisian needle yet, but because of my eagerness to try, I just use my 13 cm double sided crochet hook number 5/6 using cotton thread 8 ply that I bought from Craft&Me and mixed with some blue colour left over yarn and the finished project diameter is 14 cm.
These YouTube videos also helped me to start.