We can certainly do that. I can even have her spin an empty egg sac and give you that.

[He's yet to see a male of her species in this world and he's quite sure that she's far too big for common house spiders to mate with, so any egg sacs she produces will be duds anyway, perfect to tear apart.]

She's certainly in no short supply of silk. One time I settled down for an afternoon nap and she gave me a spider silk turban. I'm not sure if that was her way of preventing bedhead or if she just felt mischievous.