I have seen a pattern for different sizes in the same afghan ...kinda like a crazy quilt , where you have a lot of different sizes of blocks. Maybe if you can crochet around each one of all the wrong blocks making them all the same size, using a completely different color for the correcting border.Then set them together as one crazy quilt afghan. Other than that idea I don't know what to tell you. I wouldn't try to rip out 50 Blocks , specially if you have worked the ends in on each block as you made them. I hope you can use them some way...Best of luck to you! redhead/Patty