Rutan Boomerang
Commonwealth aircraft corporation "CAC" Boomerang Fighter
i was actually looking for what i wanted to post next before posting answer i wanted to find something "hard", i found it pretty quick guess we are going to have to start doing less and less of the picture LOL.
If you just grab a picture off of the internet, you'll be able to search the web for it. For above example, on Google Chrome, right click the image and press Search Google for this image - it'll find the source. If the image has been modified it will be less likely to find it.
I've got a good one; good luck!
Hard:
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This is one of my favorite civilian aircraft
Haha, a little late on that one.It's and Edgley EA-7 Optica.