This reason and the fact that marking a quilt top for quilting takes time made me completely ignore this option.
Then a little nephew arrived into the world and I bought him some washable markers.
And I tried them on my quilts and I am extremely happy with them. I tested them ...
and I tested them again recently.
I had to mark a top then to fuse pieces on the marked top. You know what this means- ironing over the marking!!! I even forgot water in the iron and I pressed with steam!
Try the washable markers for kids that many brands have (I saw some on Crayola website too). Someone told me that she has the same brand as mine and they did not wash out. I heard about Crayola the same thing: for some they work, for others not. I think they were not exactly the same products.
The only way to found out is to try it for yourself.
If you mark your quilt top, then it is best to wash the quilt. Some quilters are afraid to wash their quilts; I wash everything I quilt and never had a problem. I hand wash the small quilts but the large quilts I wash in the washing machine.
I always use a small amount of gentle detergent.
It's essential to have a marker you trust in. Sooner or later you will need one.
I love the freedom these markers bring me! I love that they are cheap and available in many colors!
I hope you will find your favorite markers too!
PS. Now you know what my new quilt is all about! I will show you next week!
Edited to add
See here the finished quilt