The boomerangs are really fun, just wait until you stay getting your grown up blocks back. Even after being in 3(I did 2 groups in #4) I can believe the different squares that come back from the same F8 material! This is also a time to try out different squares-sometimes it's easier to try out on one square before jumping into making a whole quilt. I thinks it's great to mix the different levels of difficulty and skills it make a beautifully well-rounded quilt. :thumbup: