I definitely don't agree with "thing I don't like should be illegal".
And I can't really agree with "People who sold something I don't like should be liable for it's use".
I think the "blame" for objects should lie in the people that misuse them. Now, obviously, it's a little hard to come up with legitimate reasons to have a towel hook camera. However... All you're asking for is smaller cameras.
To which we restart this whole thing with "These super small cameras should be illegal".