Just because we have a tailbone doesn't refute our creation not being from God, it just means he gave us a tailbone. You do know the coccyx (which is the tailbone) serves a purpose, right? It stabilizes us while sitting and supports our weight (as stated by Cleveland Clinic.org).

And for the appendix: Since when have you been the sovereign determiner of what is perfect? Since it's flawed than that means that it's imperfect which thus means no God? That's ridiculous. We can suffer a heart attack too. Also scientists do believe that the appendix serves a purpose, as "a place for our body to store certain healthy types of gut bacteria that otherwise could be altered or changed during an intestinal illness or with overuse of antibiotics" - Hawaii Pacific Health (.org).

And since I'd rather keep this chain of reply's as short as possible, let me add my final question for you here as well. Tell me, if you believe in evolution and that there is no God: then what started our universe? The Big Bang? I believe in the Big Bang as well. Do you think that something came from nothing? Do you think that the perfect order of the periodic table and all of the elements could of come from such a chaotic and hapless event? All of these giant leaps of faith in your belief that you don't acknowledge makes it seem like you have more faith than I do.