The Bicycle Crunch is a very well known oblique exercise that can be done at home to tone up your side abs.
The Cross Crunch is a great exercise to tone up your side abs and obliques area.
Dumbbell Side Bend is a very easy but effective exercise to tone up your obliques and side abs fast.
Heel Touchers is a great Obliques Exercises you can do at home to tone up your side abs fast!
The Straight Leg Pendulum is a powerful oblique exercise you can do at home.