Exactly my thoughts. I don't want to mess up the beautiful Capys so I will have to find a solution like that.I'm glad you're figuring this out as I've had both capybara minis and a pile of skinks waiting around for a lull in my backlog for actual ages. At least when I go to do mine I'll be able to follow your progress. Also if you sculpt a saddle on you could embed a magnet in the green stuff and then your skinks are easily removable and also your capybaras won't have big pin holes or ugly magnets sticking out of their backs
Could probably use the old Tichi Huichi Skink Horned One riders, from Dogs of War.