Mafia 80. Chronicles in Plasticine.

I considered it as one Non-Destructible (ND) item.
In general, Ootu should somehow highlight these ND items better, as they are all mixed up. The description is not very clear anyway, and you still have to look for their quantity.

Glinko. Complete the quest.
Hacker from Kharkiv. Moderator.
Robot Bill. Sentimentality.
Windows. Smoking.
Virus A. Diversionary maneuver.
Bear. Distant memory.
Windows 2000. Smoking. Reboot.

Okay, if there are four of them, then it probably displayed 1, 3, 5, and maybe 6, which is why this cry from the forest followed immediately after the first one.
The rest is unlikely, both according to the description and logically. Although the maniac could have used something.