Stop wiggling so much, mouse. Olly was having just a little bit of a problem making sure his subject did not get away. But it had not managed to escape so far, so he could still consider his attempts a success. He just had to hurry up and get the spell right, because a goblet did not try and run away.

"Vera Verto." He tapped the mouse three times, and with each tap it seemed to squirm even more. It was very distracting, so it was unsurprising when the spell did not work. Olly concentrated on what he was doing, ignoring the movements of the mouse in his left hand. Concentrate.

"Vera Verto." Tap. Tap. Tap. Nothing. "Vera Verto." This time, on the third tap, the mouse began to transform. Began being the important word there. It took on the shape of a goblet, but retained it's mouse fur and tail. And it was still wiggling. Not as much as a fully mouse-shaped mouse would be able to, but more than a goblet should. Uh, that was not right.