Bella takes the bag and starts inspecting it like she hopes to make a sewing pattern for another just like it. Then she sets to work.

It's a simple spell, but for anything that's not a sleeve it takes varying amounts of coaxing. She does some of this coaxing aloud. "C'mon, you're so sleevy, I bet you always wanted to be a sleeve when you grew up, huh, you'd make the best sleeve," she coos to Tony's bag.