Finding one of the late WW2 porcelain coins has been a personal goal of mine for several years, as I am interested in coins of nonstandard shapes and materials. It took me quite a while to come across one. This one is split through, so I don't dare take it out of the packaging to get a better photo. At least that made it cheap, though. $2.
There are materials available to repair porcelain, so perhaps you should consider if it could be repaired.
Eh, I'll buy a better one some day. There's enough missing material on the reverse that even if I repair the crack it won't look much better. This one is more of a placeholder, but I'm still happy to have it.
I'll have to dig mine out and post it. Honestly, I see no problem gluing it together to stabilize it. Plus you only have $2 invested Here's a German porcelain notgeld medal with an "edge ding"
I have to admit I think it's kind of cool broken. I've seen some mildly damaged ones (chips etc), but nothing that drastic and still in an intact packaging.