I mean, I know it would be a retread of Storm Force Accelatron to some degree, but throw a scrambler/higher intensity flat ride into a building, add some fun DMX effects to mimic Unchained's aesthetic, and call it some sort of ancillary battery/generator manned by the Bride to help with supplementary power to help Vicky out.
Cost is low, impact is high, and it adds something a family could theoretically trick their kids into riding.