A feathered Tyrannosaurus Rex.
A scaly Tyrannosaurus Rex
A feathered Oryctrodromeus
At one point some creatures could choose between feathered and scaly models.
Tyrannosaurus used to have them, but they were removed. The rex's remodel will have no feathered option. Orycto almost did, but it's since been decided it will be purely feathered.