wildyard

I recycle 100% cotton bed skirts for the fabric, and often the tops are a thin fabric that is not good for anything else. There is a lot of it, especially on King size skirts and I cut this fabric and use it for backing on string blocks as well as T-shirt quilts.

paintmejudy

Pellon 830 Easy Pattern -- like a very thin interfacing, flexible but doesn't shrink or stretch. Comes on the bolt 42" wide (yes, 42 not 21 like clothing interfacing). I think it has gone up to $2.49 a yard, but with a 40% coupon from that big box store .... I think it is sold as a material if you are drafting a pattern, or making a new one from one used too often and is falling apart. I love it for string projects.

Rebel quilter

Bridal eisle runners. Great for foundations, washable and can be dried, without shrinking. Best of all, no tearing away paper. It is lighter weight than muslin. I have also make the quilt that you have pictured and I used the bridal eisle. It can be purchased from HobbyLobby with a 40% coupon. Give it a try!

DJinSC

I've never made a quilt like this. Why do you need a foundation?

Bobbielinks

No suggestions for a foundation, but your top sure is pretty!!!

maviskw

Paintmejudy, I love your avatar. I just finished a quilt top with that pattern but used black for the background. The stars are batik and the effect is stunning.

tatavw01

Sweet, nicely done

Becky's Crafts

Could you use a lightweight stabilizer or pellon for your foundation? That shouldn't add much extra weight, even with the batting, I wouldn't think it would be too heavy.

QuiltnLady1

I have only used this for small projects and it worked -- it is very light weight and is polyester so I pre-washed everything and shrank the batting.

Heather1957

I have used a light muslin too, like the scrap/string quilt