Not to mention the amount of water being wasted whilst scrubbing away! Wonder if they'd be good for ... nah, can't think of anything!
What always crosses my mind when viewing infomertials for useless contraptions is, who thinks this stuff up and who funds it?
As regards the "snotty" egg separator, I've seen this before and rather like it, not as a serious kitchen implement of course, just as a fun item. At least it's interesting, in a funky sculptural sense, and could serve as a crock for small kitchen gadgets/teaspoons, as an herb pot, or just as an eccentric piece on a shelf!
But more importantly, it has great potential when trying to entertain the grandkids