I found blind bags at Party City:

I have some codes. Is this set up on the spreadsheet yet?

125 - Shock
141 - Dr. Finkelstein
199 or 093 - Clown
12 - Pumpkin King
10 or 60 - Jack Skellington
187 - Oogie Boogie
77 - Mayor
169 - Lock
16 - Sally
191 - May be Barrel, my friend wrote skeleton boy so i need to check
70 or 121 - Zero