Chris Ritter/BuzzFeed 1. Elsa's snow queen dress from Frozen. doxiequeen1.wordpress.com Angela Clayton used over 100,000 rhinestones on this dress that was "very, very time consuming" to make. Brave souls can find the tutorial here. 2. This incredible tribute to the movie Labyrinth. Costumes by Deconstructess / Via etsy.com Guaranteed to make your family stars come October 31st. All you have to do is dedicate every weekend (and weekday?) until then to making this stuff. 3. These homemade Beetlejuice costumes are pretty fabulous, too. Costumes by Deconstructess / Via etsy.com Just don't expect to throw them together at the last minute. 4. Space Marine Armor from Warhammer 40,000. cdn.instructables.com You, too, can wear this costume on Halloween by following the "352 terribly complicated steps" in this tutorial. 5. Marty McFly and his Delorean from Back To The Future. Flickr: goines You'd probably need to go back in time to have a chance at finishing this brilliant costume created by mom and dad team Cory and Jeremy Newton-Smith. 6. Ghostbuster uniform and Ectomobile from Ghostbusters. Flickr: goines / Via photo.rottenkitten.com More magic by the Newton-Smith's that you don't have time to make. 7. This kidnapped mermaid costume. instructables.com Arrrggghhh you ready to spend hours and hours and hours on a costume? If so, ye shall find the tutorial here. 8. Rollercoaster riders. brit.co This is another terrific costume idea for friends, but you could wait in line for the world's most popular roller coaster many times over before you finish it. 9. Luke Skywalker on a Tauntaun from Star Wars. craziestgadgets.com The maker of this out-of-this-world costume used 3D software to design the frame, then built it by hand. Whoa. 10. Carol and KW from Where The Wild Things Are. instructables.com Learn more about these amazing homemade costumes here. 11. The Weeping Angel from Doctor Who. instructables.com It took the maker of this costume three months to finish it, but he says he probably could have done it in two to three weeks if he had more hours in the day. Up for a challenge? Check out the tutorial. 12. Iron Man. trendhunter.com This DIY costume used over 600 rivets in its design, so if you're looking for a last minute costume this ain't it. 13. Diva Plavalaguna from The Fifth Element. ideas.coolest-homemade-costumes.com You can learn about how this jaw dropping, entirely homemade costume was made here. 14. Minion from Despicable Me. instructables.com Learn more here about this long in the making show stopper built almost entirely out of cardboard. 15. Medusa. ideas.coolest-homemade-costumes.com This brilliant, handmade costume took over a hundred hours to sew and sculpt. Find out how it was made here... if you dare. 16. Robot. pagingfunmums.com Find the cool tutorial here, but be warned: you could probably build an actual robot in less time. 17. Little Red Riding Hood. makeit-loveit.com This to-the-tee costume took more than a month to make. Find the tutorial here. 18. Optimus Prime from Transformers. cdn.instructables.com There's more than meets the eye to building this impressive costume. Want to make one, too? The writer of this tutorial advises you "learn to work on 3 to 4 hours of sleep each night." 19. Disney Princesses. happilygrim.blogspot.com You can find uncannily realistic tutorials for just about all of the Disney princesses here, but click at your own risk — each will take a long time to complete.