Okay queenof2802 if you make 3 blocks in each set that would give each of us a block. Now you could make 4 blocks and keep one for yourself. There is only four of us so we don't need six in a set.
tracibug, lovngrandma and myself we would make 3 in each set and we could get one of every design. Plus keep one for ourselves. But we need to pick out 2 of of our blocks designs to give to queenof2802 so this would make the three of us 20 blocks total. I hope this makes sense to you all.
Now this being said if you have different blocks but similar we could swap more. Like I did six dog blocks but some of the dogs are different. That's only if you wanted more than one dog.