My son was so easy to potty train compared to my littlest one. She was SO HARD to potty train. Nothing seemed to work for more than one day.

There was nothing that could tempt her. So, I did a treasure box at the suggestion of a friend. Every time she went #1 she got to visit the treasure box (DH's shoe box). First, we talked about the treasure box. Then I let her decorate it with pictures (I printed out embellies from some of my digi kits for her to clip and glue), glitter glue, and ribbons. Inside was stickers, miniature toys (dollar store finds, squinkies, polly pockets, littlest pet shops), candy, individually bagged snacks, and faux jewelry. So, whatever it was that she wanted that day was hopefully in that box. LOL! I figured the $$ I put into it was well worth my sanity.

And, it worked 98% of the time. The other 2% I had to talk to her about it. Did Snow White and Cinderella wet themselves??? No, princesses do not pee in their gorgeous gowns. Eventually it sunk in. But, it was completely HER idea when she eventually became trained. Despite everything I tried, it really happened when it was her idea.
DS was convinced to become dry when we set up a potty chart for him. If he filled the chart with stars, he would be rewarded with a trip to Disney to meet Mickey (we had a trip planned anyway... I was worried what we'd do if he didn't fill the chart in time!!!)

. I used a Mickey Mouse puppet to talk with him when he would sit on the potty. In 3 weeks he was 100% potty trained. LOL!
ETA: Oh, forgot to mention that after we trained her for #1 we eventually only rewarded her with a trip to the treasure box for #2's and #1's in stores or away from home. Kwim?
Oh, the things we do to potty train. haha.