A slew of accessories have been made for Apple's iPhone 5, which hit shelves last month, but with more than 5 million smartphones sold just three days after the release, a whole lot of users are in need of a case to protect their new device from wear and tear.

Mashable spoke with Michael Morgan, a senior analyst with ABI Research covering mobile devices, about the popularity of iPhone cases. About 75 percent of those who purchase an iPhone will also purchase a protective case, according to a study by ABI.

The average selling price for a case made by Apple is $18, and Apple is slated to sell 58 million iPhone 5 devices this year, according to Mashable. That means $783 million in revenue in iPhone 5 cases alone.

Apple has some quality cases, of course, but they're not the only option. (Besides, iPhone users might want to try a case that is a bit more outrageous this time around.) Companies like Griffin and Case-Mate offer some wild options, while Etsy crafters hold their own with some jaw-dropping designs.

Check out some of the most outrageous iPhone 5 cases in the slideshow below. And for the less daring among you, there's also our roundup of the best, least ostentatious iPhone 5 cases (here).

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  • Electrical Outlet On iPhone Case

    This iPhone case may fool some looking for a power source. Case-Mate suggests it as a gift for the electrician in your life. <a href="http://www.zazzle.com/funny_photo_of_electrical_outlet_on_iphone_case-179547747870757962" target="_hplink">(Zazzle, $39.95)</a>

  • Rainbow Treasure Sally Pony iPhone 5 Case

    "My Little Pony" gets bedazzled with this case made by Etsy designer, Tom Lin of Tomfashionplace. <a href="http://www.etsy.com/listing/103252802/rainbow-treasure-sally-pony-iphone-5">(Etsy, $48)</a>

  • Woogie for iPhone and iPod Touch

    The interactive Woogie case will not only flop down for video and gaming ease, but you can also download the free app and turn Woogie into your own pet. <a href="http://store.griffintechnology.com/woogie-case-for-iphone-ipod">(Griffin, $24.99) </a>

  • Emboss 3D Camera Pink iPhone 5 Pastel Soft Skin Case

    This case will make your iPhone 5 look like a new camera. The lens also doubles as a stand. <a href="http://www.thetinyrobot.com/emboss-3d-camera-pink-iphone-5-pastel-soft-skin-case/?gclid=CPz689Gd97ICFcmd4AodpwYAsg">(The Tiny Robot, $7.95)</a>

  • Super Angry Birds Swarovski Crystal iPhone

    Angry Bird fans, rejoice. This Swarovski crystal iPhone 5 case, made by an Etsy designer from China, will surely catch some attention. <a href="http://www.etsy.com/listing/107963858/super-angry-birds-swarovski-crystal?ref=sr_gallery_43&ga_search_query=iphone+5+cases&ga_view_type=gallery&ga_ship_to=US&ga_order=price_desc&ga_page=0&ga_search_type=all" target="_hplink">(Etsy, $219.99)</a>

  • Game Boy Retro Case

    "So realistic your friends will ask to play Tetris," reads the description for this phone. Complete with raised buttons, this does look like the real thing. <a href="http://www.rocketcases.com/case/iphone-5-game-boy">(Rocket Cases, $14.99) </a>

  • Opena

    Opena, maker of the world's first iPhone 4 case with a slide-out bottle opener, is getting ready for its iPhone 5 version. The case is coming soon, but you send in your email address to know when it becomes available. <a href="http://www.openacase.com/collections/frontpage">(Opena, $39.95)</a>

  • ReadyCase

    ReadyCase is a team of L.A.-based designers who came up with the perfect iPhone 5 case -- complete with a lens ring, USB drive, kickstand, headphone clip and multi-tool. This case is not yet available, but you can pledge as little as $40 to reserve yours. <a href="http://www.indiegogo.com/TheReadyCase">(Indiegogo, $40 to $10,000)</a>

  • Custom Swarovski Crystals "Little Mermaid" Case

    This case is inspired by Disney's "The Little Mermaid" Ariel, made by Madelyn Lo of Etsy. <a href="http://www.etsy.com/listing/108668372/custom-swarovski-crystals-disney-iphone?utm_source=googleproduct&utm_medium=syndication&utm_campaign=GPS">(Etsy, $34.99)</a>

  • Animal Parade Case Series for iPhone 5

    These adorable animals make the perfect iPhone 5 mates. <a href="http://store.griffintechnology.com/animal-parade-case-series-for-iphone-5">(Griffin, $19.99)</a>

  • iPhone 5 Case with Mirror

    The Shine iPhone 5 case from Proporta will keep even the most image-conscious iPhone user happy all day long. <a href="http://www.proporta.com/product/iphone-5-case-with-mirror-shine-aztec">(Proporta, £ 24.95)</a>

  • This iPhone 5 case features a sketch of "Star Wars" character Han Solo in carbonate from Etsy designer tomes. <a href="http://www.etsy.com/listing/111311216/iphone-5-caseiphone-5-hard-caseiphone-5?ref=sr_gallery_42&ga_search_query=iphone+5+case&ga_view_type=gallery&ga_ship_to=US&ga_page=12&ga_search_type=all">(Etsy, $14.99)</a>

  • Studded iPhone 5 Case

    Studs turn into spikes on this iPhone 5 Case by Etsy designer Li Yin Ki. <a href="http://www.etsy.com/listing/110489730/studded-iphone-5-case-iphone-5g-case?utm_source=googleproduct&utm_medium=syndication&utm_campaign=GPS">(Etsy, $33.88)</a>

  • 3D "Stitch" Case

    Stitch from "Lilo and Stitch," is turned into a super cute iPhone 5 case. <a href="http://www.ebay.com/itm/Newest-3D-Cute-Stitch-Movable-Ear-Flip-Silicone-Soft-Case-iPhone-5-5G-MSC193-/180988246873?_trksid=p4340.m1850&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D11%26meid%3D2649960127664989256%26pid%3D100011%26prg%3D1005%26rk%3D1%26sd%3D170913943482%26">(eBay, $7.98) </a>

  • Revolution for iPhone 5

    The Gresso "Revolution" bumper case is made with titanium and polished 18-carat yellow gold and costs a cool $1,700. <a href="http://luxury.gresso.com/luxurycases/213/773/?63&n=a1&ib=63&id=213&bid=63&el=773">(Gresso, $1,700)</a>

  • WADDLER for iPhone 5

    A penguin-inspired iPhone 5 is incomplete without dangling orange feet. Luckily, this case has it all. <a href="http://www.case-mate.com/iPhone-5-Creatures/Case-Mate-iPhone-5-Creatures-Waddler-Cases.asp">(Case-Mate, $30)</a>

  • Cushi iPhone 5 Pad Cassette Red

    Go back to the days before the iPod took over music with this cassette iPhone case made by id America. <a href="http://fab.com/sale/11529/product/238423" target="_hplink">(Fab.com, $11.95)</a>

  • Rabito Bunny Ears Case

    Dress your iPhone 5 in this red bunny suit from Rabito. <a href="http://www.boxytech.com/i5-rabito-red?___store=us">(Boxytech, $19.99)</a>

  • Ebi ( Shrimp ) Sushi Phone Case

    Don't let your friends mistake this iPhone case for dinner. Made by Etsy user Danielle London. <a href="http://www.etsy.com/listing/69982034/ebi-shrimp-sushi-phone-case-iphone-droid?ref=sr_gallery_6&ga_search_query=sushi+iphone+5+case&ga_view_type=gallery&ga_ship_to=US&ga_search_type=all">(Etsy, $24.50)</a>

  • Cubeit

    Design your own case with these colorful interchangeable silicone cubes. <a href="http://shop.x-doria.com/products/cubit-2/409568">(X-Doria, $29.99)</a>

  • Native Union Pop Phone Handset

    BONUS! An old-school handset for your iPhone will definitely make you stand out in a crowd. <a href="http://www.urbanoutfitters.com/urban/catalog/productdetail.jsp?id=23905714b&parentid=A_MEDIA_GADGETS">(Urban Outfitters, $48)</a>

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