Fabric scraps (Vienna Woods/Arden arcade)

Hello everyone, I am looking for small bits and pieces of fabric scraps for an art project with my Girl Scout troop.
We are learning about how important it is to plant trees for the Girl Scout World Thinking Day and My Tree Promise patches. I got a book from the library about Dr. Wangari Maathai who spearheaded a tree planting campaign in Kenya.
The illustrator of the book used colorful and bright patterned fabrics and oil painting to illustrate the book and I would like to have my girls do an art project using colorful fabrics and acrylic paints to make collages in the same theme.
I would so appreciate any donations for our art projects.
We will also be learning about sewing very soon, so I would love fabric and supplies we can use for pillow cases, tote bags, aprons, or other good beginner projects.
I can pick up in the greater Sacramento area, but Arden-arcade and Carmichael are easiest.
My girls are so creative and just love doing art and making crafts! -thank you in advance!

Sue