In the 1st half of this episode there’s some great BTS stories/breakdowns of the practical miniature effects used for TPM and AOTC by Adam Savage (Mythbusters & Tested) who actually worked on the films as a modelmaker.

VFX Artists React to Bad & Great CGi 58 (ft. ADAM SAVAGE)
https://www.youtube.com/watch?v=en7deA6dE7Y - from the Corridor Crew YouTube channel (19 mins long)

The blurb:
“In today’s episode Adam Savage joins us to tell tales of his experiences working with effects as a model maker, fabricator, television host, and all-around film buff. Thank you for joining us Adam!”