I do abs and obliques exercises all the time, my favourite!
Take my advice furriends, you need to do this every once in a while (best everyday) to keep in shape else the hoomans start cutting your treats, your diet, and every foodables you can think of!
This move strengthens your neck while keeping those "tyres" around the neck at bay.
Do this for 20 secs:
Then rest for 10 secs:
Rest again for 10 secs. OR,
you can snoopervise your hooman see what he/she is doing:
Do the above for 3 sets.
Finally, cool down and rest.