If you like to do waist twisting, I suggest you buy a waist twisting disc, which is not very expensive.
If you want to lose weight, you can try to shake the hula hoop, which is absolutely effective.
Shake it for an hour every day (be sure to shake it for an hour) for faster speed, with a heartbeat of 130 per minute and a slim waist of 1-2 inches a month.
I personally tested this and still shake it every day.