The first episode after the Pilot featured SpongeBob pursueing the love of his life.. A tree squirel!  In that episode Sandy invites SpongeBob to her Treedome for lunch. However being exposed to air is rapididly drying SpongeBob out. This is the production cel from the very moment he starts to dry. This comes with a nice print background that complements the cel.

From first episode SpongeBob Production Cel.