You can use just about any kind of tape, just as long as it won’t hurt their skin when you remove it (stay away from gorilla tape, for example). Paper first aid tape works especially well to hold their toesies in place.
You can cut the sole from a thin piece of cardboard (like a cereal box), or use a doubled- or tripled-over piece of duct tape. Try to trim it close so it’s not getting stepped on by the chick’s other foot, or by any of the other chicks in the brooder..
Personally, I think they can walk better, with less chance they'll slip & get hurt, if you leave the back toe ‘un-sandalled‘. That way they can still sorta grip the fl
Like smiley mentioned, the chick probably won’t need the corrective shoe for very long. Because they grow so quickly, chicks usually stop needing support after just a few days.
Google “corrective chick sandals examples“ and you can see several ways that others have made a chickie shoe.
Good luck!
Please be sure to come back & tell us how things turned out for the chick.