I suppose "for the shaver who has everything" crowd...maybe. Still and all a fairly ridiculous idea. Yes that's a DE blade encased in a bar of glycerin soap:
I have some apples with razor blades if you need a snack before you clean yourself up... I've encased blades in glass, but in soap is just a bad idea...
I have to admit I didn't quite believe you at first, and went to the web site. Wow. Lawsuit waiting to happen, even though they say, "FOR DECORATIVE PURPOSES ONLY!" The other notes don't make it seem any more attractive. "Over time, the razor blade may rust inside the soap, as glycerin soap has hydrophilic (water-loving) properties. Soap may arrive with a rusty razor blade as oxidation occurs at different rates."