Here's my maybe a bit expensive, and probably unlikely in fluff terms, Sternguard squad. They are made of each armour mark of Space Marine from MKI to MKVIII. The MKVIII is probably the most interesting as there isn't really much parts available for this armour type. I used the shoulder pads from the company champion in the command squad set to match the MKVIII photo from Imperial Armour 10 as well as the well known MKVIII torso from the tactical squad. The metal parts on the MKVII and MKVIII marine are from the Crimson fist conversion set with the exception of the metal boltgun. Of course MKII - MK-VI armour types are from Forgeworld and the MKI is from the armour through the ages set.