Has anyone bought any Treds / Stick on Flip Flops? Any good ?

[Oblomov]

The topless /stick on flip flops. Are they on the high street ? How much are they ? And are they comfy ?
en.ce.cn/Life/entertainment/fashion&beauty/EFBft/200608/10/t20060810_8079178.shtml
or
www.latestbuy.com.au/treds_slippers.html

I saw these - I don't think I could cope with wearing em. I'd feel silly.