Pat and Stan
Pat and Stan (Pat et Stanley) is a French-American CG animated comedy series created by Pierre Coffin, that has aired on TF1 since 2004. The series involves a hippopotamus named Pat and a dog named Stan.
Pat inflates himself to escape from Stan who is looking for him to take him to the dentist.
Pat inflates Stan as a prank and uses Stan as a bagpipe.
Pat inflates Stan with a balloon for his "magic trick".
In addition to various shorts, there is also a series of episodes lasting 7 minutes apiece.
A Button on the Nose (S1E04)
Stan inflates from trying to stop releasing bubbles due to a remedy for the mosquito bite on his nose.