I just had a question: I was asked about making a quilt with cotton fabrics and putting tshirt material in the same quilt on the front or back. I was wondering if that could be done with good results or if it is going to make the quilt pucker where the tshirt material would be? Has anyone done this before?

I have not done this, but there are many here who have. You will have some good answers soon.

Don't for get to use stabilizer on the t-shirt material, use the iron on kind before you cut out the block, this way it wont go wonky on you.

I've never used t-shirt fabric together with regular cotton but I know that you'll want to iron stabilizer on the back of the t-shirt fabrics. This will prevent the cotton knit from puckering...

Stabalize and you will be fine. T-shirts quilts are very easy. You will be fine

I just finished one up today. I researched first and found different methods. I chose to use fusible tricot interfacing. I applied it with the stretch going in the opposite direction of the stretch in the t-shirt. It made for a very soft piece to work with that did not stretch! I made the section bigger than I wanted and cut down after I fused the tricot. I think the tricot is a little more expensive than the regular fusible interfacing, but I don't mind...I'm so pleased with the way it came out.

The t-shirts were all different sizes, so I used regular quilting fabric for block borders, then added sashing and borders to the quilt itself. It does weigh more than a traditional quilt. I was going to to FMQ in the area all around the designs on the t-shirts, but found it difficult to do on my machine. I ended up just going around the characters and stitch in the ditch on the block. I love how it came out. I didn't have any problem with puckering. It's in the dryer now, so I will take pics later and add them to this post.

Thanks I will be watching for the pics.

you certainly can combine fabrics in quilts- there are wonderful quilts that contain fleece= cotton, batiks, wools, silks---everything and anything-
using t-shirt knits you need to use a fusable non-woven stablizer- to keep the pieces from stretching while working with them- it is inexpensive-available in pretty much any store that carries fashion fabrics (like joannes-hobby lobby---some lqs)
when combining different fabrics laundering is the only thing to really worry about.
t-shirt quilts are made with t=shirts and cottons all the time

Here you go! The t-shirts are the innermost blocks. Everything else is quilting cotton. The back is cotton. I used a ball point needle for the quilting on the t-shirt blocks. Switched to a quilting needle after that. Not sure if that was necessary, but I did it anyway. :)

Thank You