I took the plunge and transformed Unicron into planet mode and replaced the orange parts with the blue ones. I used @Mykltron's video, which is great. Only thing is I pulled off the big horns (f'naar f'naar) and can not get them back on. Has anybody else done the same? What did you do to reattatch them? (f'naar f'naar) is a catchphrase used by Finbarr Saunders (and his double entendres), in a funny adult comic in the UK called Viz.