What you can’t find in Tokyo, you probably don’t need. On the other hand, there are many things that you can find, but definitely don’t need.
Besides the 100y shop (God bless Daiso for solving the students’ everyday needs), there are many peculiar shops such as Don Quijote, that sell rather unuseless knick-knacks.
While most of the stuff is fairly harmless and mainly just peculiar (not the Finnish design plates, but the other items and so much more), there are some things in the stores that I just find a bit…disturbing.
Some things just can’t be explained.