I like Cozy Quilt designs for 2-1/2" strips.
https://www.cozyquilt.com/aspx/Produ....aspx?CatID=15 Cactus Wreath (
https://www.cozyquilt.com/Aspx/Produ...?productID=456) and Daybreak (
https://www.cozyquilt.com/Aspx/Produ...productID=3294) ( & mine
http://www.quiltingboard.com/picture...s-t253977.html) may be 2 of my favorites from this page! I've also made 'flag' quilts from 2-1/2" strips. I wasn't a big 2-1/2" strip fan til these.... Good Luck! Looks like you've got a ton of fun there!