You can use any momentary switch for this. For instance:
Two separate momentary push buttons
2 pole center off momentary toggle switch (returns to center off position when released)
Wand and screws (put screws in the control panel connected to the L and R connections on the snap relay. Power supply goes to the C connection on one side and the wand on the other.)
(Admittedly extravagant) LCC nodes and switch driver cards.