Padding performers to a different silhouette is a decision with much to influence it. It is my opinion as a maker that fat is NOT a character, and that with casting it is preferable to cast a person of the appropriate body type to the story if that is necessary. However, at the times I have been asked to create body padding it has either been unrealistic to fit the story or realistic enough that people could not tell it was not real. I have given workshops and sat on panels discussing how to be a respectful partner in the fitting room to performers who are larger than "standard" measurements, because sizeism in our industry is not acceptable.
Body padding was suddenly a large part of my life in 2011, for productions of Faust, the Last Savage, and for the production of "I Love to Eat," a play about James Beard. I learned a great deal about anatomy, movement, weight, materials, and usability.
Some undergarments are for shows, some as foundation garments for dresses, and some are projects.
Costumes for Dance / Trick Costumes
In musicals, plays, and dance concerts I have created and recreated from original designs many different sorts of danceable garments. In some cases these garments perform tricks as well.