Saito S wrote:
Scales or fins or gills? Horns?
We had all
of those. Even Naomi
What helped Westmore achieve so many aliens on the budget he had was being able to pre-paint
many of the foam latex appliances. Older technologies did not permit this.
What about skin colors that humans can't have?
If you've read interviews with ST actors who had their skin coloration changed, the clean-up afterwards is worse than the application process. Leonard John Crofoot (Robotic gold Lal) and Yvonne Craig (Marta in TOS) spent hours in the shower being scrubbed by stage hands, then had to turn up for it to happen all over again the next day.
Skin patterns are time-consuming
and very hard to match day-by-day. Dax in DS9 was a nightmare; Westmore said her spots never matched under scrutiny. That's why they tend to be for one-off cameos, such as the waterproof stripes applied to the triple-breasted cat dancer played by Linda Fetters in ST V:
Linda Fetters in ST V
by Therin of Andor
, on Flickr