I know I'm wanting to make it something that makes Lois laugh, like she didn't expect to see them. I kind of like the idea of blue booties/footed bodysuit but it would lend credence to the negative answer to the question "does the suit come off?"

CLARK: No. I'm just worried I'm a jinx.
JONATHAN: A jinx?
CLARK: Yeah. Let's face it, ever since she's known me, Lois's been kidnapped, frozen, pushed off buildings, almost stabbed, poisoned, buried alive and who knows what else, and it's all because of me.
-"Contact" (You're not her jinx, you're her blessing.)