G loves tatoos. We put these on before bedtime one night. She now only sleeps in "big guhrl panties and puuwup."
By morning the tats had all wiped off from her not going to sleep and wiggling and squirming.
That night I even went so far as to tell her if she didn't get still I was going to call the wickie witch to come get her. Yes I know it was mean and I told her I was just teasing but not till the morning.
Oh and it only worked a minute!