A Calvin and Hobbes mashup with Invader Zim by Frank Malec. Invader Zim and Spaceman Spiff become Invader Spiff.
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*The Shirt List gets commissions for purchases made through this link.
About Invader Spiff T-Shirt
- Artist: FMM3, Frank Malec
- Store: TeePublic
- Tags Calvin and Hobbes, Cartoon, Invader Zim, Mashup, TV