I have a suggestion that I would like to suggest as a crown shop item.

Stitching certificates. That way, you can gift your friends a certificate that allows them to stitch an item. Of course, these certificates will only cost 100 crowns, just like normal stitching, but you can save them for later use, or gift them to friends.

What crown shop items would you like to see, what ideas do you have?

Totems with Relentless or Burst Fire perhaps?