!''Blog.WhatIf''
* ImageSource: [[http://what-if.xkcd.com/21/ "Machine Gun Jetpack"]] gives us RecoilBoost.

!''ComicBook.WhatIf''

* ImageSource: Trope pages with images from this series include:
** FantasticFruitsAndVegetables
** GoodHurtsEvil
** HiccupHijinks
** WhatIf
** WritingAroundTrademarks

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