The Trophy is a block added by OpenBlocks. This block is a decorative item that can drop from monsters on death. As of OpenBlocks 1.2.8, they will not drop from kills from non-players. Each trophy has a different action when a player right-clicks on it. There are 25 trophies: one trophy for each vanilla creature.
Creature
Action
Cow
"Moo" sound, sometimes produces Leather
Skeleton
Skeleton sounds and launches Arrows
Bat
Bat sounds
Witch
Nothing
Ocelot
Meowing sound
Blaze
Blaze sound and lights user on fire
Spider
Spider sounds
Slime
Nothing
Enderman
Enderman sounds and teleports player a short distance
Squid
Places water on nearby blocks
Iron Golem
Nothing
Pig
"Oink" sound and sometimes produce Raw Porkchops
Chicken
Chicken noises and sometimes produces Eggs
Creeper
Explosion sounds and particles
Zombie Pigman
Zombie Pigman noises and sometimes produces Gold Nuggets