KFC - When Crocker fails his Crock-a-doodle-prank, the chicken store Crocker crashes in "DFC" is a spoof of the famous chicken restaurant.
Also, DFC stands for "Dimmsdale Fried Chicken" which refers to KFC standing for "Kentucky Fried Chicken".
When Norm poofs up a cup and ice cream, the ice cream is chocolate, but when he's in the same frame as Crocker, it's vanilla, then turns chocolate again after Crocker shakes it up. It could be possible that it was surrounded by regular milk, but there's no frame seen where Norm adds milk.
Before Crocker paints Trixie on the cliff, the paint on the paint brush is brown, but after he paints her, it's purple.
It is unknown why Crocker could have simply just used his third wish to make unlimited wishes instead of constantly wishing for 3 more wishes, because in Genie Menie Minie Mo, Norm said that his wishes are rule-free.
Crocker wishing for three more wishes and Norm granting them.
Norm insisting that Crocker wish Timmy to Mars, where Timmy would suffocate due to the lack of oxygen.
Crocker saying "Fairy Godparents" in different poses.