For awhile, with my middle son, a Dilly Bar(Dairy Queen treat) was purchased for each day. Each time Mom had to put up with negative behavior from him, Mom got to take a bite off that Dilly Bar. At the end of the day, he got what was left.
That's pretty good. I like that. Discipline gets boring if you don't get to eat treats in front of a child behaving poorly.
My favourite was downing a packet of sour worms in front of my basketball team after training one day. I'd asked them about fifteen times to not bounce balls while I was explaining things. They figured the worms were reward for training hard, but I just kept eating them while that one kid was bouncing a ball. They eventually worked out what was going on, and peer pressure worked it's magic, at which point I handed the packet over.
Didn't say a word the whole time...lol