Character: crackle (mlp)
Crackle is an oddly-shaped dragon appearing in one scene of the episode. When Garble becomes suspicious of the ponies' costume, asking as to who is the "dragon", another dragon thinks that he is Crackle's cousin. The next shot shows Crackle groaning and scratching herself, with the dragons concluding that this makes sense.
Series 2 of Enterplay's trading cards includes a card featuring Crackle, revealing her to be a female.
This tag implicates friendship_is_magic (learn more).