I am looking for a large wireless door bell button, (the button could be larger than a 50 cent piece), ideas?

Question

-it's actually for dog training, it has to be larger than your average door bell, and easy to push.

Answer 1

Maybe you could just glue something larger onto the doorbell button.

Answer 2

If you use a section of coil spring circling the press button and place a piece of perspex or mdf above and below this should give you the stability s***w doorbell button to piece of MDF then put coil spring around the doorbell and hold it in place with clips the coil spring should be very slightly higher than the button then then fix the piece of  MDF that will be pressed to operate the bell you may need a couple of blocks of Mdf to prevent the large button damaging the wireless unit