What did Walt Disney get froze in?

Walt Disney was not frozen. This is a common misconception that seems to have originated from a combination of his interest in cryonics and the fact that he died in 1966, just as the first cryonics attempts were being made.

There is no credible evidence to suggest that Walt Disney's body was frozen. He was cremated and his ashes are interred at Forest Lawn Memorial Park in Glendale, California.