Antoniotsai ukuleles are ornately inlaid and unbelievably cheap. However, they're not really musical instruments but suitable as ornaments .
Many people have reported some big problems with Antonio Tsai's ukuleles and his other musical instruments. There are two threads on Ukulele Underground discussing his ukuleles (here and here) and more general discussions about his musical instruments here and here. I wouldn't go so far as to say that Antonitsai ukuleles are a scam, but you have to be aware of what you're getting. The prices are cheap (less cheap after you take delivery into account), so you're not risking too much money with it.