I enjoyed the larger amount of 36 because you did end up with a nice 72 x 72 top when you put them together and that is without borders or sashing or anything.
After receiving some more input here are some more thoughts. Please let me know what you all think.
Option 1: We have two groups. One for people who want to swap 24 (23 actual blocks) blocks in 4 months and a group for people who want to swap 36 (35 actual blocks) blocks in 4 months.
Option 2: We have a vote for number of blocks wiht a 4 month time period also (which also limits the number of swappers to that number of blocks)
A-24 blocks (48 x 72)
B-25 blocks (60 x 60)
C-28 blocks (48 x 84)
D-30 blocks (60 x 72)
E-35 blocks (60 x 84)
F-36 blocks (72 x 72)
Any and all input is much appreciated :-)
Hugs
April