Quoted from E_Gpinball:I won't be able to purchase my own rick and morty pin, but if I did, I would love to have:
*a pickle rick flipper topper for the upper flipper
*a plumbus plunger
*if the plunger idea doesn't work then a plumbus toy on a coil that shakes is around would suffice
Just overlay the launch button with a plumbus, it will still function as a switch. Might be fun to push something squishy to launch the ball.
I was planning on making a plumbus out of TPU as a prototype. Just make a thin but large apron surrounding the plumbus, this will serve as a backing to hold it to the pin... then you reaffix the launch button to hold it in place.
The best (easiest, best quality and for volume) way to approach this is by creating a negative for casting out of silicone once the prototype is demonstrated to install easily and function... once printed and smoothed, use oil-based clay (designed for silicone molding) to make the negative. Once you have a negative it is as simple as setting up a molding box, pouring, curing, then cleaning up the mold.