3Dream has come out with the Master Skull Cap, with fits for about 50 characters, including Rex, Roxie, Anastasia, and Tyler. Currently has 5 short hair styles, including a "leaf" hair that goes well with your pixie outfit.

Darkseal has his "Roxie Plus" at Renderotica. Despite the name, and emphasis on a couple square inches, there are a lot of useful morphs, including nose, lip, ear, flat chested, really thin, Humungous breasts and "Baby Got Back", thinner thighs.

Looks like this might be the only game in town.

Glitterati came out with a 40's dress for both Miki 4 and Roxie at RDNA. Netherworks has a Hair Conversion System fit for Roxie. LadyRaine has a character morph and texture there. Texture Transformer by Reality Paint is promising V4 to Roxie and M4 to Rex in the future.

Shame we have a couple of decent characters in Poser, and darn near nothing for them. Thank you for your work, EClark.