Me an' My Dog/I.M. Weasel: Dessert Island/Cow's Dream Catcher

Plot:

Cow adopts an invisible dog as a pet. / Weasel and I.R. end up stranded on an island made entirely of confectioneries (i.e., chocolate, ice cream, cupcakes, etc.). / A night in the treehouse turns into a nightmare for Chicken, Flem, and Earl when they break Cow's dream catcher.