See Dazzling Quicksmith. Yeah, there's no art in the show that'd make sense for this, so I picked something random.

Though actually, once I'm letting myself go with art outside the actual show, the options are much wider... Rainbow Dash would probably in fact build a robot version of herself. There are some fun arts like this and this and this and this. But given these Servos don't have flying, a better option might be this or this.