Completly and totally obsessed with Launchpad here noticed that Launchpad's journal in "Launchpad's first flight" (forgive me for correcting the unnecessarly mean and cruel title)has what looks like a herdic device on it: a blue and white shield with gold top, two white stars and gold wings on the side.
Do the McQuacks has a coat of arms? Or is just the company-that-makes-the-journal's emblem?
Might be the later, the McQuacks might not have had enough money to have their own coat of arms. Althought they might have, as a matter of pride.