How do you position the letters, numbers,... in the cube?

[Rpotts]

that is very confusing, but the image is very cool. Did you make that?

 

[Mako]

Using: Old Pochman for corners, M2 for edges

        (b)-(b)-A
        e---a
        G-c-D

(b)-f-I  H-d-E  F-b-C  B-(b)-(b)
p---n   m---i   l---h   g---o
Z-z-W   V-v-S   T-t-Q   P-r-Y

        U-u-R
      x/y---s
        X-q-O

(b) are buffers

 

[hic0057]

-A-
D-B
-C-

-I- -E- -R- -M-
L-J H-F U-S P-N
-K- -G- -T- -O-

-V-
Y-W
-X-

 

[irontwig]

Haven't done a complete solve yet, but this makes sense to me:
U: U V K Y
F: F G H I
R: R S T A
B: B C D E
L: L M N O
D: P Å Ä Ö (lolswedish)