When Rick explains that "Them's fightin' words" is a cowboy expression, the letter R and the lightning bolts on his tunic are the wrong way round.
After Rick has been thrown off his kangaroo and is sitting on the ground, the letter R and the lightning bolts on his tunic are the wrong way round.
After Miss Tickle uses her magic to turn the bull into a calf, her eyebrows are missing in one shot where she is sitting in the stands, and then in the next shot she is standing in the arena when she should still be in her seat.