\draw[thick, pplport] (0, 0) ellipse (0.25 and 3); \draw[ultra thick, pplport, decorate, decoration={snake, segment length=1mm, amplitude=0.3mm}] (0, 0) ellipse (0.23 ...

\draw[ultra thick, bluport, decorate, decoration={snake, segment length=1mm, amplitude=0.3mm}] (0, 0) ellipse (2 and 1); \node[text height=1em, text depth=1em] (1) at ...