Pharmaceutical company ballpoint pens, 3 pieces, Hello Kitty and other characters

Novelty ballpoint pens from a pharmaceutical company.
Three black single-color pens, all with mascots on top.

① Hello Kitty
A rare blue Nurse Kitty wearing a nurse cap.
It says "1976, 2006," so it's likely from 2006.
It has been stored long-term in a plastic bag and has never been opened.
The ballpoint pen manufacturer is unknown.

② Tsumura Pink Sheep
A ballpoint pen from Tsumura (Kampo medicine).
Uni Aqua Touch (apparently discontinued).
It has been stored long-term in a plastic bag and has never been opened.

③ Nipro Polar Bear
The ballpoint pen manufacturer is unknown.
It was stored long-term in a plastic bag, but the bag has a tear, and there is black staining on the back of the polar bear's head (see image 18).
The cause is unknown, as it has been stored for many years.

All of them have been stored for a long time, so it is unknown if the ink will still work.
Please understand if the ink does not write.
They will be shipped via Yu-Packet Post Mini, with bubble wrap or cardboard as cushioning.

※ The Kitty-chan pen (①) is 3000 yen individually.
Please let me know in the comments if you would like to purchase it.