THANK YOU SO SO SO MUCH for all the replies so far!
I Definitely agree that #7 is the exact coin you linked me to. I tried googling to find more information (would like to be able to put in some form of date and value) but had no luck (I'm apparently a terrible googler).
I matched up #3 to the date 1938-40 (thank you blue/morgan)
#4/5 were a pain to grab the date but I think I matched it up to 1960.
#8 matched up perfectly (thank you!)
Using this information, I was able to identify #1 as 1 sen from 1944/45
* #2/#3, I am still having difficulty with. I recognize that it has the middle hole and two extra holes that don't belong there. I checked on http://(131231) Not Allowed - Auto-Removed /countries/Japan.php through each 5 sen coin three times and can not match it up.
And, any ideas on #6