red star with the flag is for the red army guard units, units that were awarded an "elite" status after wartime service. the ones with the red cross/crescent are for people who donated blood in the USSR for the red cross/crescent (there are third and first class pins for it on there). the one with lenin's head is for "udarniks" (shock workers), highly productive and disciplined laborers. the one with the white circle and red star in the middle is some kind of excellence award for soviet army i believe (directly translating what it says). the normal red star with hammer and sickle pins around the hat are pins that came standard with these kinds of pilotka caps. the one with the 3 is a proficiency badge for soviet enlisted soldiers. the one with the running guy is a military sport/athletics proficiency badge. the large one on the right thats hanging i cant really make out the first two characters but it says MVD, ministry of internal affairs, so maybe that. the one with the 1 on it is probably another athletic proficiency badge, it says "razryad" on it. those are all the ones i can identify, hope this helps. if you want to try and find more of them, this site has a lot of these soviet pins documented.