in Aus dollars the Stern Kiss Topper is $500 AUD which isn't cheap and probably targeting the Kiss fans more than the pinhead fans and sure they will pay for them.

Laseriffic sell toppers from $165 to $225 which are yes acrylic but not a little more 3 dimensional but doubt many people will be keen to formally produce a topper like this as word is Gene will go after them.
http://www.laseriffic.com/product-category/pinball/toppers/


The Stern kiss topper may have different lighting effects but still not worth the $500 AUD. I agree that Stern should of added some simple lighting effect pcb board behind the logo in the trans / bg and get the same effect for $50 cost. But I am sure that some one will create a lighting kit for the logo here in the very near future.