Here is an (incomplete) list of quilts that you can make with 12 Fat Quarters! If you click on the link, it will take you to the page where you can purchase and/or download the pattern:
Throw Size
- Starship Quilt by Sarah Made (Throw Size)
- Finished Size 53" x 70"
- Background Fabric: 2.5 yards or 1.5 yards (there are two different versions)
- Binding Fabric: 2/3 yard
- Backing Fabric: 4 yards

Bed Size
- Good Times Quilt by Sarah Made (Bed Size)
- Finished size: 54" x 72"
- Background Fabric: 2.5 yards
- Binding Fabric: 2/3 yard
- Backing Fabric: 5 yards

Photo credit: @sarah_made
- Quilty Stars by Quilty Love (Twin)
- Finished size: 73" x 90"
- Background Fabric: 4.5 yards
- Binding Fabric: 0.75 yards
- Backing Fabric: 5.5 yards

Photo by @emily_dennis_
- Metamorphosis Quilt by Lo and Behold Stitchery (Throw size)
- Finished size: 55" x 68"
- Body: 1/4 yard
- Background Fabric: 3 1/4 yard
- Binding Fabric: 1/2 yard
- Backing Fabric: 3.75 yards

Photo credit: @loandbeholdstitchery
- Solitaire Quilt by Homemade Emily Jane (Twin Size)
- Finished Size: 72” x 96"
- Accent Fabric: 1 3/4 yd.
- Background Fabric: 3 1/4 yd.
- Binding Fabric: 2/3 yd.
- Backing Fabric: 6 1/2 yds.

Photo credit: @homemadeemilyjane
- Agnes Quilt by Penelope Handmade (Small Rectangle Throw size)
- Finished size: 32" x 32"
- Background Fabric: 2 yards
- Binding Fabric: 1/2 yard
- Backing Fabric: 3 yards

Photo credit @penleopehandmade