A few episodes/moments stuck with me when I was young.
- Taffy Trouble from Hi Hi Puffy AmiYumi
-Sasquatch-ercise from Kablam!
- Frankie Foster eating cookies
Weight gain is fun to draw because it's great to come up with ideas that fit a character. For instance, Starfire's bubbly personality makes me see her playing with her belly.
I personally prefer more cartoony characters over realistic ones, but that's just my cup of tea.