The red one may actually be an Akro “Flintie”—they come in a variety of looks, some look very opaque in hand and some will not.
Backlight it and look for a pronounced “fisheye” effect no matter how you turn it. “Flinties “are opalescent—hard to tell with the red ones though.
The green one—looks like an Akro to me.
Marble—On!!