When Cam is pulling clown items from the brown paper bag, he pulls out a hot dog, and in the next shot of him the hot dog is gone. He then pulls out the same hot dog from the bag and puts it down.
While Cam is unpacking his new clown props, he sets down a plush toy toothbrush and hot dog. When it cuts back to him the toothbrush has become a pencil and the hot dog is gone only to be unpacked once again.