Multitasking with Ice Cream

We have been trying to start potty training Jimmy, but he has no interest in sitting still even for M&M's if he goes potty. The other day after school I picked him up his first ice cream cone and brought him home to sit on the potty. It worked, he finally pee peed in the potty! He then went again the next day. The funny thing is he wants nothing to do with pull-ups or big boy underwear, he screams for a diaper. We are not pushing him, but are excited that he has sat on the potty at least once or twice a day since then.