"Objects" refers to anything that the players can find along their path to victory and/or utter humiliation. That means extra weapons as well as various less violent instances, though decidedly not hats.
“The Sandman is a replacement for the Scout's Baseball Bat. It is a wooden bat (rather than the...The Sandman
“The Mad Milk is a replacement for the Scout's pistol. It essentially represents Jarate, except...Mad Milk
“The Force-A-Nature is a replacement for the Scout's Scattergun: It loads only two shells instead...Force-A-Nature
“The Black Box is a replacement weapon for the Soldier's Rocket Launcher. Despite having a...Black Box
“The Gunboats are not a fleet of small vessels shooting at people from the water. Which would...Gunboats