MUMMNG-4432: replace sad bucky

[Doug-Reed]

Sad Bucky is not our image to use. We have run roughshod over the intellectual property of others. Replacing with a generic.

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[apetro]

Alright, now that we've been bitten by this: why do we believe we're allowed to use that exclamation point and where do we document that?

[Doug-Reed]

Public domain.