You can have Danse of the Brotherhood of Steel wear Buzz Lightyear armour, but you have to find it first.
Over on Nexus mods, creator Sorenova has made a Buzz Lightyear armour set for one of your companions in Fallout 4. The set is designed for Danse, a Paladin of the Brotherhood of Steel.
To get this to work, first you’ll have to make sure Danse is a follower. But because he has his own unique set in the game, you’re going to need find the armour first after installing the mod, then have him wear it.
The Buzz set can be found at a Power Armor station on the Prydwen.
Creator Sorenova says the mod will have him wear the new suit by default when Bethesda releases the Creation Kit, which allows for far better access than what modders are working with now.
Take a gander at how he looks in it, and check our mega mod page for more.