The head mod requires you to install one of those yellowsub ball joints mentioned in my guides, it fits Smoulder's head. You'll need Loctite's 2-part plastic superglue system to affix it in place of the old swivel plug and a drill. This is a great way to turn your Ratchet into someone else
More pics here----> Heatwave
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Magnificus was made from, you guessed it, a RTS Perceptor. I wanted to try out Testors One Coat Lacquer 'Blazing Black' which turned out to be a glossy metallic black. The metallic fleck-look is pretty nice. I added the mouthguard, modded his shoulder cannon with a 5mm plug (or whatever the mechtech standard is) so he can hold it, and gave him one of Ravage's cannons with a plug attached to the bottom. Ga'mede was made from the parts of 3 different Human Alliance figures and painted up to look like his microman counterpart.
More pics here----> Magnificus