I was looking for a mean pluto that I have on a mug and came across these vector images of Pluto. These are great since you can resize them to any size and they do not distort. Here is the site in case the links dont work.

1.
Vector cartoon clipart: Pluto
PlutoDownload:
WMF / EPS
CDR / JPG

4.
Vector cartoon clipart: Pluto
PlutoDownload:
WMF / EPS
CDR / JPG

7.
Vector cartoon clipart: Pluto
PlutoDownload:
WMF / EPS
CDR / JPG
8.
Vector cartoon clipart: Pluto
PlutoDownload:
WMF / EPS
CDR / JPG