Originally Posted by SSJokker

Easiest way to prove everything.

Make a model of a...hmm...say an american football helmet, that is just as good quality as the alien. If you can do it, it's clear you can have made the alien either way. And since you made it, one more thing added to your collection. If you can't, you can't have possibly made the alien.

Also, no tutorial for this one. If you made it following the tutorial, you should know how to use what you learned.

Also have something easily recognizable so we know it's made by you (if you're going to texture it, have your name somewhere on the helmet. If not, something like your name in shapes around the helmet. Something so we can tell)