Another tiring day on base, Engineer sat at his workbench, contemplating if he should make another doohickey or tinker with a trinket or-

His thoughts were quickly interrupted by a soft slap to his helmet. He blinked, turning around and facing you. You had a big ol’ sticker sheet in your hands and stupid smile plastered on your face that told him you were definitely up to no good.

Hours later, his entire helmet and edges of his googles had small stickers plastered onto them, you happily placing more onto his helmet despite going through two sticker sheets.