my father is from Bosnia, when I was young I went to "Yugoslavian school" (in addition to normal dutch school) and we would recite patriotic poems and I basically finished the equivalent of schooling til 12 years old
I was declared a pioneer and received a cap thing like that shape and a boy scout type handkerchief for around my neck and 1 pin.
I remember my cousins having books full of pins so receiving them and collecting them was quite a thing there as well
I can read some of the pins but Im not sure they are all in the same genre
the horse jumping one says something like Spartakiada Narodov SSSR (like sports thing for the people of sssr)
the house one with the red around it says something like: teatr (im) Ivana Franka (which might be this
https://www.google.com/search?client=fi ... eatre+kiev)