At one time the streets of Tokyo may have been littered with these. I like to think so.
Ten years is a long time in the button business, so these Maromi pins are probably a lot rarer today.
One half of the metaphoric center of Satoshi Kon's Paranoia Agent, the character is a (n absolutely brilliant) satire on commercial icons. So there's a meta-satire -I guess that's practically snark -to Maromi merchandise.
Little Slugger (Shonen Bat in Japanese, great name), is the balance to Maromi.
They make any lapel look better.