Admittedly, I don't know Splendor, but is it possible to do mis-direction? As in, throw/toss a vase into a pillow or heavily padded area, and have ASM/crew break something (cheap) offstage? Murano is very patterned so it would probably be easier to hide pre-made cracks like loebtmc recommended, but I always like a bit of trickery onstage.
Loebtmc, with the plate pre-broken, did you have to be cautious of being cut by the ceramic? I got a nasty cut from a broken plate once, so I'm curious.