Build Your Own Destruction Ray Machine!!

People on Earth have suddenly started going insane! Why?

Interplanetary swell guy Rex Dexter is called in to investigate!

A quick trip to the moon later...

Why, of course...

Rex finds the dreaded device...

YOWZA!!

He and his crew blow it up, and kill of the bad moon people!

But wait--that's not the end!! The very next page lets you build your very own insanity-dealing moon-based death device!!

Holy crap!!

Yes, get out your razor blades, kids!!

Anyway, this will look pretty boss when I'm done. Just let me snip out this piece...oops...well, a little tape can fix that! Now to fold this...uh-oh. Well, that's not too bad. Now if I just...

Two hours later:

Well, there's a reason I was always chosen last for Arts & Crafts teams...

From Mystery Men Comics #14 (1940)

Two Heads ARE NOT Better Than One!!

Rex Dexter, the original Martian manhunter, has found an odd alien trying to take over his ship!

Evolution, folks. What can I say?

Anyway...

Well, it turns out he was only phase one of a massive alien invasion!

I, for one, welcome our new Cranian overlords!!

Fortunately, Rex doesn't!

You know, for a race that everyone thought was a fairy tale, Rex seems to have some pretty damn precise information on the Cranians' history and weakness!

But will it work?!?

Phew!!

Remember, everyone, pay your oxygen bills!!

From Mystery Man Comics #17 (1940)