Pet my tummy please
On of our new rabbits in 'trance' as some say. Putting them on their back to be quiet and still is something we're teaching them. It's sooo much easier (and adorable to see) to cut their nails, when those are too long.
Some rabbits don't have a problem laying on their back. Others are a real problem. Don't break their fragile spines! If it really doesn't want to lay on its back, than let it be. Try again later. Begin young. And do not forget to pet their tummy :) give them a small reward afterwards for being so good.