Kitten Chewing

Hello, I recently adopted 2 kittens from a county animal shelter.. I was just wondering if anyone has any suggestions on how to stop chewing... My one cat Basil ( the dark one) chews everything and anything.... He loves chewing on the cardboard box flaps, my elbow, my fingers, and anything else.. He will come up to me at night to cuddle, which is fine, until he starts chewing on my elbow or nibbling on my fingers.. Does anyone have any suggestions to or ideas to prevent my fingers from becoming his evening snack...... Thank you in advance!

It could be that he's teething?!. Rosie and Sophie did the same when they were tiny and a member told me to put a damp tea towel in the fridge(not the freezer)so they could bite on the edge for relief and it worked for mine.