Cut all 11 fabrics. Then go to a room with a lot of space.
Fabric #1 has 11 pieces, right? So lay it out in 11 different star "areas" (you'll be laying out 11 star blocks). Lay 1 piece from fabric #1 in each area. You now have 1 piece of 11 stars, and each piece is different.
Fabric #2, place in with each of the 11 star areas. As long as you don't pick the same piece you already have from fabric #1, they will all lay out fine. Now you have 11 star blocks with 2 pieces.
And just keep repeating. This should always give you 11 different stars with fully different colors, as long as it's different pieces, and you only put 1 from each fabric with each star. There will always be somewhere in the 11 blocks to put each new piece. So if you've laid out fabrics 1-10 and only 11 is left, and the 1st block doesn't need a center but it does need a top right background, top right fabric #11 piece there, and the center where ever it's needed.