Here's another easy way to do puffy braids without having to do the normal puffy braids.
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Part the hair in half. Add your 2 elastics on each side.
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Now part a middle section. Split the 2 piggies up top in half & add them to your middle section & add your elastic. Then part sides remembering to include the pieces from the ponies above.
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Part the hair down the middle again. Divide the pony in the middle in half & include it in each pony along with the side ponies.
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It should look like 2 diamonds right in the middle. I just left the piggies down but you could do little buns.