"That's Derpy's mark of quality."

"That's Derpy's Derpy's mark mark of of quality."

StupidMaronGuy
 
"That's Derpy's mark of quality."
Source
That's Derpy's mark of quality. - My little pony, PonyArt, Derpy hooves

My little pony Derpy hooves My little pony PonyArt
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