Aww that's totally fair!
She merges the two mergeables, and then sets off to work.
She makes a half-dozen disks, each the size of a quarter, green emerald forming the green lantern logo on one side, with the interior detailing made of a green sapphire, with the reverse side made of blue sapphire, with pale blue emerald forming the base, with little streams of runic script etched by lantern's light. She grows a slight stem from the top of each - fit for threading in a small wire to turn them into pendants, if so desired. She spends a good half hour on each of three pairs - a mental ward, a physical ward, and a mix of the two.
For them, the hope is to impress batman, to see him approving, to have something tangible and brilliant and colorful, to make something by her own will unique in all the world that makes people light up with glee, and to give people a steadiness and surety that they never really had, in a world with so many bizzare things that can make invalidate their choices and their strength. No more, she hopes. No more, she wills.
She makes a replacement ring of emerald, for simple will, in much the same design as her old one, doing her best to channel out the steady strength she imbued into the replacement. She keeps the function as general as she can, but takes her time to refine the shield it projects away from the blurry fuzz into a sliver-thin barrier, trying to make sure it can protect her from more ills then simple physical force - the green lanterns seem to be able to survive in environments that no ordinary human would, so she tries her best to include that. The focus is on her will to live, her will to conquer and steady the world, to be the shore and a sailor both, and the strength of her resolution and her old talents in meditation.
She forges a ring of blue, a solid sapphire polished to a silvery sheen, laced with little impurities that form sigils inside the shining blue gem. Her hopes are wider, looser, and her meditations reflect that - the hope to see the stars, to bring hope to others, to get to dance and fly and sing, to see the grateful look on people's faces as she forges something new and precious, the rush of relief and the satisfaction of a task completed that caps off the pursuit of a forlorn dream. In so much as she focuses on anything, she focuses on keeping her hopes safe and free inside her soul.
She forges a combined ring, too, the materials intermingling like the disks, the two sigils pressed together like two sides of an infinity. She presses her hope that she can be a hero and the resolve she needs to be one nestled softly together to form an incredible strength inside the iridescent ring. She lets her wordless hopes and wordless will pour into it, too, feeling them more beneath her fingers as she forges it, accumulating the layers one at a time, blue and green streaming and splashing against each other before they twine into place and steady. She doesn't have a full suite of skills, so there's so much left to feel, so much left to put inside, but for now, she puts in the patterns for the weaving of barriers and constructs - the safety and salvation of others, the gift she can give, with her own self a little more assured, now.
She makes untouched samples of each material - the zeta quartz, the green emerald, and the blue sapphire she used for his examination, later, before remembering the kryptonian fascination with crystals, and looks for a while to see if there's anything of interest she can make there, as of yet.
It's... oddly intimate and exposing, to work through feeling so much, so she won't poke M'gann quite yet. Still, she has to eat, and she has to take care of herself - she takes a shower just to unwind from the reverie of it all. She plans a little, too, letting her half-verbal thoughts wander as she thinks of exactly what she wants to say to Batman.
She finds herself a room to have the meeting in - it would be good to have a whiteboard or something, but anywhere with chairs is ultimately okay - and sets herself up there fifteen minutes before in a nice blue dress, her charms laid out before her on the table.