review WHATEVER you have, and everything, everything down to fish foods and sand or salt. Also, i think its neat when they have a voiceover, it makes it sound more professional because you can read a script while you talk into the mic. Always repeat things in reviews, to make sure people heard you. I do youtube reviews for another hobby of mine and im always sending emails out to small businesses asking for a small sponsorship, just to get more videos out and help them out too.