These little mascots were located in the upper-right corner of the old website. Whenever you reloaded the page you would get a random Persophone. I finished two versions of each.
This icon took you to the market page, where you could purchase your own Nekophin. You could get the resin pieces, an already sanded and primed Nekophin that you could paint, or you could ask for a pre-painted one. With only 5 pieces the instructions were very easy to follow: