as long as the fabrics you use in your project all share the same (care requirements) you can use them...and if they don't you can still use them- you just have to figure out how to care for the finished quilt (spot cleaning/ dry cleaning/ laundering/ vacuuming/
washable ultra suede is nice to work with (but a bit slippery) i made a quilt for one of my brothers with just 9" blocks alternating ultra suedes and corduroys...it is FABULOUS! but very heavy!