Ever since the glorious debut of Bad Romance in 2009, Lady Gaga once again made herself the entertainment circle's focus, causing unrelenting trends of worshipping and intimating. The most significant impact was not only the intimating of the song, but also the specifically exotic, cute and cartoonishly designed contact lenses. Availability of Lady Gaga contact lenses never fully meets the demand in the market, for its limited production. You can google it and then you will find it easily.
I just search online and find there are somes online shop provide lady gaga contact lenses. They are varying in different color and design. Here are their websites: http://lenscircle.com/
Hope this help.
You could check on the internet to find the similar type of the contact lenses that lady gaga wears. It is really special at the color. Then you could go to the visionwork, walmart and other online stores to have a check. The price there may be suitable and quality is proved.