Spike might not get as many cosplays as other characters, but without a doubt I do see a Spike or two at every convention. He's also a popular choice for little kids; baby dragon after all, heh.
Get some Spike cosplays after the break!
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Spike by TobiasNightbringer
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Acen 2012: Spike and Rarity by Malindachan
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Spike Hoodie by littlerobin87
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Photo: Showin' them muscles, Spike by HeadphonesStudios
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GDI Spike... by thatasianperson
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studying - (Spike, take note!) by daniL-nd
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Spike and Rarity cosplay - Sparity! by DiscordIsMagic
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Spike and Rarity. by Squibbers
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Spike and Rarity Hoodie by ponyhoodie
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My Little Pony- Closest Friends by rumRei
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Rarity and Spike 05 by boredx2
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Spike 2 by Nyankorine
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Spike 3 by Nyankorine
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My Little Ponies by bluetarako
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Spike - Anime North 2014 Cosplay by littlevampiremomo
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Spike - Youmacon 2011 by Anonymous-Mystery
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F.Y.W.A.D. by staticguru
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Twilight and Spike by Awinnerwasyou
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Spike MLP Cosplay Test. by brandonale
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Spike - Otakuthon 2012 by J25TheArcKing
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Spike 1 by Nyankorine
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Dream Chaperone by Panjiren
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My little pony by setsuna1221
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EquestriaLA 2012: 049 by ARp-Photography
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To the Princess! by LadyIkari
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Fashionably Fabulous by CyanideSymphony
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Spike-1456 by GeorgieLou
Twitter: Calpain