A couple of weeks ago I discovered the site
MorphThing. Stick in two people's faces and it morphs them together to make their lovechild! Or something.
After a few disastrous attempts with personal photos, I decided to try the Muses. It didn't go much better.
Cal (Drew Fuller) + Gloria (Lily Allen) = Trelise. Well, this has some vague resemblance to Vanessa Lengies.
Ryo (Michael Murphy) and Ruki (Lindsay Lohan) did not go well. I think it's the hair.
Brendan (Skandar Keynes) + Dairine (Jamie Lynn Spears). This one actually doesn't look too bad...
Julian (Kyle Gallner) + Dairine (Jamie Spears). Only in Julian's dreams, but somewhat attractive.
Julian (Kyle Gallner) + Trel (Vanessa Lengies). Slightly more likely.
Jem (Zac Efron) and Tina (Ashley Tisdale)'s lovechild evidently has a retainer.
Just for crack:
Elle and Brendan: Whoever said blue eyes were recessive?
Trista and Cal. Not too bad?
Jem and Amalia - at least it looks better than with Tina.