MTS

I use silk thread for all my hand applique...#100 weight.

It's wonderful to work with as it glides through the fabric.
But best of all is how it just sinks into the material.

So even though I have a gazillion colors of silk thread, I usually end up using only the white, black or gray regardless of the color of the appliqued piece.

If you've got multiple colors on the white background, go with the gray.
It's a safe choice.

Even if your stitches aren't that great, they will hardly be visible.

Worth every penny (approx $6 for a 200m spool).

Check your LQS to see what they stock.
The thread is available online as well - search for YLI or TIRE 100 silk thread.


eta: The #100 weight is the best choice but the even the #50 weight works great.