Mess with her head

Armed with this new information from eavesdropping on Tricia's phone conversation, you decide to have a little fun at her expense. After being in a coma for so long, you're not going to let your first outing since waking up to be ordinary or boring. You use your magic rings to teleport away into the main convention hall, where you wander around while invisible to find the item you're looking for. It takes some time, but you figure you're not in a rush and this place is bound to have what you want.

Eventually, you find a tall, bearded guy with what you're looking for in his hands: a professional camera. From the tag around his neck, it looks like he's part of the convention staff and is walking around to take pictures of the cosplayers, exhibits and celebrities. You stop time and grab the camera out of his hands before you teleport back into Tricia's green room where she is frozen with the phone still to her ear. You then activate your mind control ring and go up to Tricia to whisper into her free ear, "When you hear a knock on the door, you'll revert to 2007 you. You're still a star on Battlestar Galactica and you're waiting for your Playboy photo shoot. The person at the door is the photographer and this is your first time posing naked. You're going to be nervous, but remember that you find him attractive and will do as he says, and as more pictures are taken, you'll get progressively hornier."

Once you're done with your instructions, you take the phone from Tricia's hand, since it's vastly improved technology from 2007, and hide it in her purse, while tossing that into a corner of the room. Finally, you teleport to outside the door and deactivate all your rings, making yourself visible once more as the normal flow of time resumes.