I just found a couple websites for looking at nose art of B 17s and 24s (there may be other planes, but I didn't find any 29s)

this is the area to click on, if you know the name, go for the alphabet area in the 2nd row, then it takes you to a page where you narrow it down a bit more. Such as this example of the many planes named Miss something or other

enjoy the search for your favorite planes! http://www.b24bestweb.com/

https://www.facebook.com/groups/b24bestweb/

The other site is http://www.usaaf-noseart.co.uk/themes.php#.V6jclvkrKM8

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and http://www.4thfightergroupassociation.org/nose-art-gallery.html

just one gallery for example, it has Mustang and Thunderbolt nose art