Know how to make a wormhole?

Science Fiction continues to be proven right:

The objects scientists think are black holes could instead be wormholes leading to other universes, a new study says. ..."Theoretically, wormholes are much better than black holes"

So, that settles the question of 'What's best?', but the problem remains - Just how are Wormholes made?

"I see Robots... Giants worm-shaped Robots...", a leading thinker was heard to propound.